DTC P3004-49: High Voltage Power Resource Circuit Short during Pre-Charge [12/2019 - 11/2023]: Procedure

1. Check for DTCs.

   Powertrain > Hybrid Control > Trouble Codes 

   Powertrain > Motor Generator > Trouble Codes 

   Result

   Result	Proceed to
   P3004-49 only is output, or DTCs except the ones in the table below are also output.	A
   DTCs of Hybrid Control System in the tables below are output.	B
   DTCs of Motor Generator Control System in the tables below are output.	C

   Malfunction Content	System	Relevant DTC
   Microcomputer malfunction	Hybrid Control System	P0A1B-49	Drive Motor "A" Control Module Internal Electronic Failure
   		P0606-47	Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure
   		P0606-87	Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message
   		P060A-47	Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure
   		P060A-87	Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message
   		P1C9E-9F	Hybrid/EV System Reset Stuck Off
   		P0AFC-96	Hybrid/EV Battery Sensor Module Component Internal Failure
   		P0AFC-00	Hybrid/EV Battery Sensor Module
   	Motor Generator Control System	P0A1B-1F	Generator Control Module Circuit Intermittent
   		P0A1A-47	Generator Control Module Watchdog / Safety MC Failure
   		P0A1A-49	Generator Control Module Internal Electronic Failure
   		P1C2A-1C	Generator A/D Converter Circuit Circuit Voltage Out of Range
   		P1C2A-49	Generator A/D Converter Circuit Internal Electronic Failure
   		P3133-83	Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect
   		P3133-86	Communication Error from Generator to Drive Motor "A" Signal Invalid
   		P3133-87	Communication Error from Generator to Drive Motor "A" Missing Message
   Power source circuit malfunction	Hybrid Control System	P0AFC-16	Hybrid/EV Battery Sensor Module Circuit Voltage Below Threshold
   	Motor Generator Control System	P06D6-1C	Generator Control Module Offset Power Circuit Voltage Out of Range
   Communication system malfunction	Hybrid Control System	P3123-87	Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message
   		U029A-87	Lost Communication with Hybrid/EV Battery Sensor Module Missing Message
   Sensor and actuator circuit malfunction	Hybrid Control System	P0AD9-15	Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open
   		P0AD9-11	Hybrid/EV Battery Positive Contactor Circuit Short to Ground
   		P0AE4-15	Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open
   		P0AE4-11	Hybrid/EV Battery Precharge Contactor Circuit Short to Ground
   		P0ADD-15	Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open
   		P0ADD-11	Hybrid/EV Battery Negative Contactor Circuit Short to Ground
   		P0ABF-11	Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground
   		P0ABF-15	Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open
   		P0B3B-14	Hybrid/EV Battery Voltage Sensor "A" Circuit Short to Ground or Open
   		P0B40-14	Hybrid/EV Battery Voltage Sensor "B" Circuit Short to Ground or Open
   		P0B45-14	Hybrid/EV Battery Voltage Sensor "C" Circuit Short to Ground or Open
   		P0B4A-14	Hybrid/EV Battery Voltage Sensor "D" Circuit Short to Ground or Open
   		P0B4F-14	Hybrid/EV Battery Voltage Sensor "E" Circuit Short to Ground or Open
   		P0B54-14	Hybrid/EV Battery Voltage Sensor "F" Circuit Short to Ground or Open
   		P0B59-14	Hybrid/EV Battery Voltage Sensor "G" Circuit Short to Ground or Open
   		P0B5E-14	Hybrid/EV Battery Voltage Sensor "H" Circuit Short to Ground or Open
   		P0B63-14	Hybrid/EV Battery Voltage Sensor "I" Circuit Short to Ground or Open
   		P0B68-14	Hybrid/EV Battery Voltage Sensor "J" Circuit Short to Ground or Open
   		P0B6D-14	Hybrid/EV Battery Voltage Sensor "K" Circuit Short to Ground or Open
   		P0B72-14	Hybrid/EV Battery Voltage Sensor "L" Circuit Short to Ground or Open
   		P0B77-14	Hybrid/EV Battery Voltage Sensor "M" Circuit Short to Ground or Open
   		P308A-13	Hybrid/EV Battery Voltage Sensor All Circuit Open
   		P0AFC-62	Hybrid/EV Battery Sensor Module Signal Compare Failure
   		P0B23-1C	Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range
   		P308A-12	Hybrid/EV Battery Voltage Sensor All Circuit Short to Auxiliary Battery
   		P0ABF-00	Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance
   		P0ABF-28	Hybrid/EV Battery Current Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure
   		P0ABF-2A	Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range
   System malfunction	Hybrid Control System	P0C76-00	Hybrid/EV Battery System Discharge Time Too Long
   		P0D2D-1C	Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range
   		P1C81-49	High Voltage Power Resource Circuit Consumption Circuit Short
   		P1C82-49	High Voltage Power Resource Circuit Over Loading
   		P1C83-49	High Voltage Power Resource Circuit Voltage Sensor after Boosting Malfunction
   	Motor Generator Control System	P0D2D-16	Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Below Threshold
   		P0D2D-17	Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold
   		P1CB6-9E	Drive Motor "A" Inverter Voltage Sensor (VH) Stuck On
   		P0CA3-00	DC/DC Converter Step Up Voltage Performance

   HINT: 

   • P3004-49 may be output as a result of the malfunction indicated by the DTCs above.
     1. The chart above is listed in inspection order of priority.
     2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
2. Turn the ignition switch off.

Result: 

B 

GO TO DTC CHART (HYBRID CONTROL SYSTEM) 

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 09/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2020 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]

Result: 

C 

GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM)  . Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]

Result: 

A 

See step  2

1. Read the Freeze Frame Data of DTC P3004-49.

   Powertrain > Hybrid Control > Trouble Codes 

   Standard

   Freeze Frame Data	Specified Condition
   VH-Voltage after Boosting	Below 50 V [*1]
   Difference between "Hybrid Battery Voltage" and "VL-Voltage before Boosting"	-40 to 40 V [*2]

   Result

   Result	Cause	Proceed to
   Specified condition [*1] and [*2] are met	Inverter system	A
   Except above	Other	B

2. Turn the ignition switch off.

Result: 

A 

REPLACE INVERTER WITH CONVERTER ASSEMBLY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

B 

See step  3

Refer to PROCEDURE - Step 1

Result

Result: 

NG 

CONNECT SECURELY 

Result: 

OK 

See step  4

Refer to PROCEDURE - Step 5

Result

Result: 

B 

CONNECT SECURELY 

Result: 

C 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

A 

See step  5

Refer to PROCEDURE - Step 8

Result

Result: 

NG 

CONNECT SECURELY 

Result: 

OK 

See step  6

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 10 HV battery shield panel.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Disconnect the M56 HV battery junction block assembly connector.
4. Disconnect the A32 hybrid vehicle control ECU connector.
5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A32-16 (SMRB) - M56-1 (SMRB)	Ignition switch off	Below 1 Ω
   A32-15 (SMRP) - M56-2 (SMRP)	Ignition switch off	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Hybrid Vehicle Control ECU)
   *b	Front view of wire harness connector (to HV Battery Junction Block Assembly)

6. Reconnect the A32 hybrid vehicle control ECU connector.
7. Reconnect the M56 HV battery junction block assembly connector.
8. Install the No. 10 HV battery shield panel.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 10 HV battery shield panel.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Disconnect the M56 HV battery junction block assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M56-3 (GND) - Body ground	Ignition switch off	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to HV Battery Junction Block Assembly)

5. Reconnect the M56 HV battery junction block assembly connector.
6. Install the No. 10 HV battery shield panel.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  8

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the HV battery junction block assembly.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Component without harness connected (HV Battery Junction Block Assembly)

   -

   -

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z11-1 (+) - k2-1 (CBI)	Auxiliary battery voltage applied between terminals M56-1 (SMRB) and M56-3 (GND)	Below 1 Ω

4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M56-1 (SMRB) - M56-3 (GND)	-40 to 80°C (-40 to 176°F)	25.0 to 59.0 Ω

5. Install the HV battery junction block assembly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  9

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the HV battery junction block assembly.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Component without harness connected (HV Battery Junction Block Assembly)

   -

   -

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z9-1 (-) - k3-1 (CEI)	Auxiliary battery voltage applied between terminals M56-2 (SMRP) and M56-3 (GND)	24.3 to 29.7 Ω

4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M56-2 (SMRP) - M56-3 (GND)	-40 to 80°C (-40 to 176°F)	140 to 290 Ω

5. Install the HV battery junction block assembly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  10

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Check that the bolts for the HV floor under wire are tightened to the specified torque, the HV floor under wire is connected securely, and there are no contact problems.

   Specified Condition

   T = 8.0 N*m (82 kgf*cm, 71 in.*lbf)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Disconnect the HV floor under wire from the inverter with converter assembly.
4. Check for arc marks on the terminals for the HV floor under wire and inverter with converter assembly.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

5. Reconnect the HV floor under wire.

Result: 

B 

REPLACE MALFUNCTIONING PARTS 

Result: 

C 

CONNECT SECURELY 

Result: 

A 

See step  11

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 10 HV battery shield panel.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Check that the HV floor under wire is connected securely, and there are no contact problems.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

4. Disconnect the HV floor under wire connectors from the HV battery junction block assembly.
5. Check for arc marks on the terminals of the HV floor under wire and the HV battery junction block assembly.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

6. Reconnect the HV floor under wire connectors.
7. Install the No. 10 HV battery shield panel.

Result: 

B 

REPLACE MALFUNCTIONING PARTS 

Result: 

C 

CONNECT SECURELY 

Result: 

A 

See step  12

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 10 HV battery shield panel.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Disconnect the HV floor under wire connectors from the HV battery junction block assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

4. Disconnect the HV floor under wire connector from the inverter with converter assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

5. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   HV Floor Under Wire (Inverter with Converter Assembly Side)

   *b

   HV Floor Under Wire (HV Battery Junction Block Assembly Side)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   k1-1 (CBI) - k2-1 (CBI)	Ignition switch off	Below 1 Ω
   k1-2 (CEI) - k3-1 (CEI)	Ignition switch off	Below 1 Ω

   NOTE:

   Be sure not to damage or deform the terminal being inspected.

6. Reconnect the HV floor under wire connector to the inverter with converter assembly.
7. Reconnect the HV floor under wire connectors to the HV battery junction block assembly.
8. Install the No. 10 HV battery shield panel.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE FLOOR UNDER WIRE 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  13

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 10 HV battery shield panel.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Check the 2 HV battery high voltage connectors are connected securely, and there are no contact problems.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

4. Disconnect the 2 HV battery high voltage connectors from the HV battery junction block assembly.
5. Check for arc marks on the terminals of the HV battery high voltage connectors and HV battery junction block assembly.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

6. Reconnect the 2 HV battery high voltage connectors.
7. Install the No. 10 HV battery shield panel.

Result: 

B 

REPLACE MALFUNCTIONING PARTS 

Result: 

C 

CONNECT SECURELY 

Result: 

A 

See step  14

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 10 HV battery shield panel.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Disconnect the z9 HV battery high voltage cable connector from the HV battery junction block assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.

4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z9-1 (-) - Service plug grip connecting terminal 2	Ignition switch off	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	High Voltage Cable (HV Battery Junction Block Assembly Side)
   *b	Service Plug Grip Removed (Service Plug Grip Connecting Terminals)

5. Reconnect the z9 HV battery high voltage cable connector.
6. Install the No. 10 HV battery shield panel.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HV BATTERY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  15

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 1 hybrid battery shield sub-assembly.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Check that the 2 HV battery high voltage connectors are connected securely, and there are no contact problems.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

4. Remove the hybrid battery terminal block.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

   NOTE:

   Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.

5. Check for arc marks on the terminals of the HV battery high voltage connectors and hybrid battery terminal block.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

6. Install the hybrid battery terminal block.
7. Install the No. 1 hybrid battery shield sub-assembly.

Result: 

B 

REPLACE MALFUNCTIONING PARTS 

Result: 

C 

CONNECT SECURELY 

Result: 

A 

See step  16

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 1 hybrid battery shield sub-assembly.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Disconnect the z11 HV battery high voltage connector from the HV battery junction block assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.

4. Disconnect the z10 high voltage connector from the hybrid battery terminal block.
   NOTE:

   Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z10-1 - z11-1 (+)	Ignition switch off	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	High Voltage Cable (HV Battery Junction Block Assembly Side)
   *b	High Voltage Cable (Hybrid Battery Terminal Block Side)

6. Reconnect the z10 high voltage connector.
7. Reconnect the z11 HV battery high voltage connector.
8. Install the No. 1 hybrid battery shield sub-assembly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HV BATTERY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  17

1. Remove the Hybrid battery terminal block.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Hybrid battery terminal block	Always	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Hybrid Battery Terminal Block

3. Install the Hybrid battery terminal block.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HYBRID BATTERY TERMINAL BLOCK 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  18

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

2. Remove the No. 1 hybrid battery shield sub-assembly.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Disconnect the z14 high voltage connector from the hybrid battery terminal block.
   NOTE:

   Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   z14-1 - Service plug grip connecting terminal 1	Ignition switch off	100 V or higher

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	High Voltage Cable (Hybrid Battery Terminal Block Side)
   *b	Service Plug Grip Removed (Service Plug Grip Connecting Terminals)

   WARNING:

   Do not allow the probes of the electrical tester to contact each other during this inspection.

5. Reconnect the z14 high voltage connector to the hybrid battery terminal block.
6. Install the No. 1 hybrid battery shield sub-assembly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HV BATTERY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  19

1. Check for intermittent problems.

   Refer to CHECK FOR INTERMITTENT PROBLEMS [12/2019 - 11/2023]

   Result

   Result	Proceed to
   Problem symptom does not recur.	A
   Problem symptom recurs.	B

   HINT: 

   • Since 2 trip detection logic is used, the DTC detection condition must be met twice.
   • If DTC P3004-49 is output again after performing the inspection, replace the inverter with converter assembly. If DTC P3004-49 is not output again, replace the HV battery junction block assembly.

Result: 

B 

REPLACE INVERTER WITH CONVERTER ASSEMBLY 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result: 

A 

See step  20

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

Result

Result: 

NEXT 

See step  21

Refer to PROCEDURE - Step 10

Result

Result: 

A 

END 

Result: 

B 

REPLACE HYBRID VEHICLE CONTROL ECU 

Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]