DTC 16

TROUBLE CODE 16
TORQUE CONTROL CUT SIGNAL

Diagnosis
- Torque control cut signal is not emitted from Engine Control Module (ECM).
- The signal circuit is open or shorted












1. Check harness connector between Transmission Control Module (TCM) and ECM.
a. Turn Ignition Switch to "OFF".
b. Disconnect connectors from ECM and TCM.






c. Measure resistance of harness connector between TCM and ECM.
Connector & Terminal / Specified Resistance:
(B56) No. 16 - (B84) No. 36 / 1 Ohm, or less.






d. Measure resistance of harness connector between TCM and body to make sure that circuit does not short.
Connector & Terminal / Specified Resistance:
(B56) No. 16 - Body / 1 M-Ohm, or more.

2. Check Ground Line of TCM.






Measure resistance of harness connector between TCM and body.
Connector & Terminal / Specified Resistance:
(B56) No. 1 - Body / 1 Ohms or less.

3. Check input signal for TCM.
a. Connect connectors to ECM and TCM.
b. Turn Ignition Switch to "ON".






c. Measure voltage between TCM and body.
Connector & Terminal / Specified voltage:
(B56) No. 16 - Body / 6 - 9 Volts.

Using an Oscilloscope






1. Connect connectors to ECM and TCM.
2. Set oscilloscope to TCM connector terminals.
Connector & Terminals:
Positive probe; (B56) No. 16
Earth lead; Body






3. Measure voltage while starting the Engine.

CAUTION: Make sure that signal voltage is below 1 Volts for one second after starting the Engine (point "A").
- Vm: 6 - 9 Volts
- S: 1 second