Transmission Control Systems

DIAGNOSIS
Output signal circuit of shift solenoid 2 is open or shorted.

TROUBLE SYMPTOM
No shift

CHECK HARNESS AND CONNECTORS BETWEEN TCM AND SHIFT SOLENOID 2
1. Turn ignition switch to OFF.
2. Disconnect connectors from TCM and transmission.





3. Measure resistance of harness connector between TCM and transmission connector.
Connector & terminal / Specified resistance:
(B55) & No. 13 and (B11) & No. 2 / 1 ohms, or less
(B55) & No. 10 and (B11) & No. 4 / 1 ohms, or less





4. Measure resistance of harness connector between TCM and body to make sure that circuit does not short.
Connector & terminal / Specified resistance:
(B55) & No. 13 and Body / 1 M ohms, or more
(B55) & No. 10 and Body / 1 M ohms, or more





CHECK SHIFT SOLENOID 2's GROUND LINE
Measure resistance between transmission connector receptacle and transmission case.
Connector & terminal / Specified resistance:
(T4) & No. 4 and Transmission / 1 ohms, or less





CHECK SHIFT SOLENOID 2
Measure resistance between transmission connector receptacle's terminals.
Connector & terminal / Specified resistance:
(T4) & No. 2 and No. 4 / 20 - 32 ohms

CHECK OUTPUT SIGNAL EMITTED FROM TCM
1. Connect connectors to TCM and transmission.
2. Lift-up or raise the vehicle and support with safety stands.

CAUTION: On AWD models, raise all wheels off ground.

3. Start and warm-up the engine and transmission.
4. Idle the engine.
5. Move selector lever to "D".





6. Measure voltage between TCM connector terminals.
Connector & terminal / Specified voltage:
(B55) & No. 13 and No. 10 / 9 Volts, or more

NOTE: The speed difference between front and rear wheels may light either the ABS or the ABS/TCS warning light, but this indicates no malfunctions. When AT control diagnosis is finished, perform the ABS or the ABS/TCS memory clearance procedure of self-diagnosis system. Refer to Brakes and Traction Control.