C2306

P311 HYBRID TRANSMISSION / TRANSAXLE: ELECTRONIC SHIFT LEVER SYSTEM: C2304-C2306: Open or Short Circuit in U 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 these DTCs when it detects a malfunction in the parking lock motor system.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
It is not possible to clear the following DTCs using the Techstream: DTCs C2300 (Actuator System Malfunction), C2301 (Shift Changing Time Malfunction), C2303 (Short in Power Source Relay Circuit), C2304 (Open or Short Circuit in U Phase), C2305 (Open or Short Circuit in V Phase), C2306 (Open or Short Circuit in W Phase), C2307 (Power Supply) and C2309 (Open in B+ Circuit). After the repair, it is necessary to disconnect the P CON MAIN fuse and wait for at least 60 seconds to clear the DTCs.

PROCEDURE

1. CHECK DTC OUTPUT (TRANSMISSION CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Chassis / Transmission Control / Trouble Codes.

(d) Check if DTCs are output.

Result





HINT
- If DTCs C2304, 2305 and 2306 are stored at the same time, there may be a malfunction in the parking lock motor (BMA signal) power source circuit.
- If DTC C2304, 2305 or 2306 is stored individually, there may be a malfunction in the parking lock motor (MUA, MVA or MWA signal) circuits.
(e) Turn the power switch off.

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

2. CHECK FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Chassis / Transmission Control / Trouble Codes.

(d) Read the freeze frame data of C2304, 2305 and 2306.

Result





(e) Turn the power switch off.

B -- REPLACE AUXILIARY BATTERY
A -- Continue to next step.

3. CLEAR DTC C2300

NEXT -- Continue to next step.

4. CHARGE AUXILIARY BATTERY

(a) Charge the auxiliary battery.

NEXT -- Continue to next step.

5. CHECK DTC OUTPUT (SIMULATION TEST)

(a) Connect the Techstream to the DLC3.

(b) Release the brake pedal and turn the power switch on (IG).

HINT
Do not turn the power switch on (READY).

(c) Depress the brake pedal and move the shift lever to N.

(d) Enter the following menus: Chassis / Transmission Control / Trouble Codes.

(e) Check if DTCs are output.

Result





(f) Turn the power switch off.

B -- END (AUXILIARY BATTERY WAS INSUFFICIENTLY CHARGED)
A -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (SHIFT CONTROL ACTUATOR ASSEMBLY POWER SOURCE CIRCUIT) C2300

NG -- CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY POWER SOURCE CIRCUIT)
OK -- Continue to next step.

7. READ VALUE USING TECHSTREAM (U, V, W VOLTAGE) C2300

NG -- CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - SHIFT CONTROL ACTUATOR)

OK -- REPLACE TRANSMISSION CONTROL ECU ASSEMBLY Components

8. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - SHIFT CONTROL ACTUATOR) C2300

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE SHIFT CONTROL ACTUATOR ASSEMBLY Components

9. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY POWER SOURCE CIRCUIT) C2300

NG -- CHECK AND REPAIR POWER SOURCE CIRCUIT
OK -- Continue to next step.

10. CHECK HARNESS AND CONNECTOR (SHIFT CONTROL ACTUATOR ASSEMBLY - NO. 2 INTEGRATION RELAY) C2300

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

11. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - NO. 2 INTEGRATION RELAY) C2300

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

12. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY - BODY GROUND) C2300

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE NO. 2 INTEGRATION RELAY Components