C2300
HYBRID TRANSMISSION / TRANSAXLE: ELECTRONIC SHIFT LEVER SYSTEM: C2300: ACT System Malfunction
DTC C2300 - ACT System Malfunction
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 also detects the rotor rotation angle through the rotation angle sensor to control timing of current application to the coils. The transmission control ECU outputs this DTC when it detects a malfunction in the shift control actuator system.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK OTHER DTC OUTPUT (BESIDES DTC C2300)
(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: If any other codes besides C2300 are output, perform the troubleshooting for those DTCs first.
B -- REPAIR CIRCUIT INDICATED BY OUTPUT CODE
A -- Continue to next step.
2. CHECK TRANSMISSION CONTROL ECU (VC, RA, RB, RZ1 VOLTAGE)
(a) Measure the voltage of the ECU connector.
Standard voltage:
Result:
A -- CHECK WIRE HARNESS (SHIFT CONTROL ACTUATOR - BATTERY)
B -- Continue to next step.
3. 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 -- Continue to next step.
4. 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:
OK -- INSPECT SHIFT CONTROL ACTUATOR
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
5. 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:
NG -- INSPECT FUSE (P CON MTR)
OK -- Continue to next step.
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
NG -- CHECK WIRE HARNESS (TRANSMISSION CONTROL ECU - SHIFT CONTROL ACTUATOR)
OK -- REPLACE TRANSMISSION CONTROL ECU
7. INSPECT FUSE (P CON MTR)
(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.
8. INSPECT TRANSAXLE PARKING LOCK CONTROL RELAY (Marking: P CON)
(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.
9. 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)
10. CHECK WIRE HARNESS (TRANSMISSION CONTROL ECU - SHIFT CONTROL ACTUATOR)
(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
OK -- Continue to next step.
11. INSPECT SHIFT CONTROL ACTUATOR
(a) Remove the 3 bolts and transmission case cover.
(b) Remove the 3 bolts.
(c) Slightly pull the shift control actuator from the hybrid vehicle transaxle so that the shift control actuator can be turned.
(d) Turn the shift control actuator.
OK:
The shift control actuator turns smoothly.
HINT: There may be an internal actuator abnormality if the actuator does not turn smoothly.
NG -- REPLACE SHIFT CONTROL ACTUATOR
OK -- REPLACE TRANSMISSION CONTROL ECU