C2305

HYBRID TRANSMISSION / TRANSAXLE: ELECTRONIC SHIFT LEVER SYSTEM: C2304: Open or Short Circuit in "U" Phase

DTC C2304 - Open or Short Circuit in "U" Phase

DTC C2305 - Open or Short Circuit in "V" Phase

DTC C2306 - Open or Short Circuit in "W" Phase

DESCRIPTION

The shift control actuator consists of the parking lock motor and the rotation angle sensor. The transmission control ECU receives a P position switch signal from the hybrid vehicle control ECU and activates the parking lock motor by controlling current, causing the parking lock mechanism to switch. The transmission control ECU outputs this DTC when it detects a malfunction in the parking lock motor system.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch ON (IG).
(c) Turn the Techstream on.
(d) Read the DTCs.

Result





HINT:
- When DTCs C2304, C2305 and C2306 are detected simultaneously, there may be an open or short circuit between the shift control actuator and the battery.
- When DTCs C2304, C2305 and C2306 are not detected simultaneously, there may be an open or short circuit in the shift control actuator or between the actuator and the ECU.

B -- READ VALUE USING TECHSTREAM (U, V, W VOLTAGE)
A -- Continue to next step.

2. CHECK WIRE HARNESS (SHIFT CONTROL ACTUATOR - BATTERY)




(a) Disconnect the S1 actuator connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage:






OK -- READ VALUE USING TECHSTREAM (U, V, W VOLTAGE)
NG -- Continue to next step.

3. INSPECT FUSE (P CON MTR FUSE)
(a) Remove the P CON MTR H-fuse from the engine room relay block.
(b) Measure the resistance of the H-fuse.
Standard resistance:
Below 1 Ohms
NG -- INSPECT FOR SHORT IN ALL COMPONENTS CONNECTED TO FUSE AND REPAIR OR REPLACE THEM IF NEEDED, AND REPLACE H-FUSE
OK -- Continue to next step.

4. INSPECT TRANSAXLE PARKING LOCK CONTROL RELAY (Marking: P CON RELAY)




(a) Remove the P CON MTR relay from the engine room relay block.
(b) Measure the resistance of the relay.
Standard resistance:






NG -- REPLACE TRANSAXLE PARKING LOCK CONTROL RELAY
OK -- Continue to next step.

5. CHECK WIRE HARNESS (TRANSMISSION CONTROL ECU - BODY GROUND)




(a) Disconnect the T4 ECU connector.
(b) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU - BODY GROUND)
OK -- REPAIR OR REPLACE HARNESS AND CONNECTOR (SHIFT CONTROL ACTUATOR - BATTERY)
6. READ VALUE USING TECHSTREAM (U, V, W VOLTAGE)
(a) Check the Data List for proper functioning of the shift control actuator.

Shift control actuator





Standard voltage:
9 to 14 V
OK -- REPLACE TRANSMISSION CONTROL ECU
NG -- Continue to next step.

7. CHECK WIRE HARNESS (TRANSMISSION CONTROL ECU - SHIFT CONTROL ACTUATOR)




(a) Disconnect the T4 ECU connector.
(b) Disconnect the S1 actuator connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE SHIFT CONTROL ACTUATOR