A/T

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.

Wiring Diagram:

WIRING DIAGRAM

11BN1: 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 11BN2.

NO: Go to step 11BN4.

11BN2: 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 11BN3.

11BN3: 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.

11BN4: 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 11BN5.

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

11BN5: 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 Ohms?

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

NO: Go to step 11BN6.

11BN6: 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.