P1103

DTC P1103 - ENGINE TORQUE CONTROL SIGNAL 1 CIRCUIT MALFUNCTION

DTC DETECTING CONDITION:
- Two consecutive driving cycles with fault

TROUBLE SYMPTOM:
- Excessive shift shock

CAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How to Clear Diagnostic Trouble Codes. Clear Memory Mode




WIRING DIAGRAM

10BN1: CHECK INPUT SIGNAL FOR ECM.
1. Turn ignition switch to ON.

Connector & Terminal (B135) No.16 (+) - Chassis Ground (-):

2. Measure voltage between ECM and chassis ground.

CHECK: Is the voltage more than 4.5 V?

YES: Go to step 10BN2.

NO: Go to step 10BN4.

10BN2: CHECK INPUT SIGNAL FOR ECM.

Connector & Terminal (B135) No.16 (+) - Chassis Ground (-):

Measure voltage between ECM and chassis ground.

CHECK: Is the voltage more than 10 V?

YES: Repair battery short circuit in harness between ECM and TCM connector.

NO: Go to step 10BN3.

10BN3: CHECK POOR CONTACT.
Check poor contact in ECM connector.

CHECK: Is there poor contact in ECM connector?

YES: Repair poor contact in ECM connector.

NO: Replace ECM.

10BN4: CHECK HARNESS BETWEEN ECM AND TCM CONNECTOR.
1. Turn ignition switch to OFF.
2. Disconnect connectors from ECM and TCM.

Connector & Terminal (B135) No.16 - (B54) No.13:

3. Measure resistance of harness between ECM and TCM connector.

CHECK: Is the resistance less than 1 ohm?

YES: Go to step 10BN5.

NO: Repair open circuit in harness between ECM and TCM connector.

10BN5: CHECK HARNESS BETWEEN ECM AND TCM CONNECTOR.

Connector & Terminal (B135) No.16 - Chassis Ground:

Measure resistance of harness between ECM and chassis ground.

CHECK: Is the resistance less than 10 ohm?

YES: Repair ground short circuit in harness between ECM and TCM connector.

NO: Go to step 10BN6.

10BN6: CHECK POOR CONTACT.
Check poor contact in TCM connector.

CHECK: Is there poor contact in TCM connector?

YES: Repair poor contact in TCM connector.

NO: Replace TCM.