P1103
DTC P1103ENGINE TORQUE CONTROL SIGNAL CIRCUIT MALFUNCTION (TRQ)
DTC Detecting Condition
Two consecutive trips with fault.
Trouble Symptom
Excessive shift shock.
1. Check input signal from Engine Control Module (ECM).
a. Turn ignition switch to "ON".
b. Measure voltage between Engine Control Module (ECM) and body.
[CHECK]: Connector & terminal:
(B84) No. 49 - Body/4.5 Volts or more.
[YES]: Go to next [CHECK].
[NO]: Go to step 2.
[CHECK]: Is there poor contact in ECM connector?
[YES]: Repair poor contact in ECM connector.
[NO]: Replace ECM with a new one.
2. Check harness connector between ECM and Transmission Control Module (TCM).
a. Turn ignition switch to "OFF".
b. Disconnect connectors from ECM and TCM.
c. Measure resistance of harness connector between ECM and TCM.
[CHECK]: Connector & terminal:
(B84) No. 49 - (B55) No. 16/10 Ohms or less.
[YES]: Go to next step.
[NO]: Repair open circuit of harness between ECM connector and TCM connector.
d. Measure resistance of harness connector between ECM and body.
[CHECK]: Connector & terminal:
(B84) No. 49 - Body/1 M-Ohms or more.
[YES]: Go to next [CHECK].
[NO]: Repair short circuit of harness between ECM connector and TCM connector.
[CHECK]: Is there poor contact in TCM connector?
[YES]: Repair poor contact in TCM connector.
[NO]: Replace TCM with a new one.