C140A- TRANSFER CASE MOTOR PERFORMANCE

For a complete wiring diagram Refer to Section 8W

When Monitored:
With the ignition on and no undervoltage or overvoltage condition present.
Set Condition:
A faulted condition is detected in the H-bridge driver.

Possible Causes

(T315) SHIFT MOTOR CONTROL A CIRCUIT SHORTED TO VOLTAGE

(T316) SHIFT MOTOR CONTROL B CIRCUIT SHORTED TO VOLTAGE

(T315) SHIFT MOTOR CONTROL A CIRCUIT SHORTED TO GROUND

(T316) SHIFT MOTOR CONTROL B CIRCUIT SHORTED TO GROUND

(T315) SHIFT MOTOR CONTROL A CIRCUIT SHORTED TO (T316) SHIFT MOTOR CONTROL B CIRCUIT

TRANSFER CASE MOTOR

FINAL DRIVE CONTROL MODULE

1. DTC IS ACTIVE

Is the status Active for this DTC?

Yes

2.(T315) SHIFT MOTOR CONTROL A CIRCUIT SHORTED TO VOLTAGE

Is there any voltage present?

Yes

Repair the (T315) Shift Motor Control A circuit for a short to voltage.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE)

3.(T316) SHIFT MOTOR CONTROL B CIRCUIT SHORTED TO VOLTAGE

Is there any voltage present?

Yes

Repair the (T316) Shift Motor Control B circuit for a short to voltage.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE)

4.(T315) SHIFT MOTOR CONTROL A CIRCUIT SHORTED TO GROUND

Is the resistance below 5.0 ohms?

Yes

Repair the (T315) Shift Motor Control A circuit for a short to ground.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE)

5.(T316) SHIFT MOTOR CONTROL B CIRCUIT SHORTED TO GROUND

Is the resistance below 5.0 ohms?

Yes

Repair the (T316) Shift Motor Control B circuit for a short to ground.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE)

6.(T315) SHIFT MOTOR CONTROL A CIRCUIT SHORTED TO (T316) SHIFT MOTOR CONTROL B CIRCUIT

Is the resistance below 5.0 ohms?

Yes

Repair the (T315) Shift Motor Control A circuit for a short to the (T316) Shift Motor Control B circuit.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE)

7.TRANSFER CASE MOTOR

Is the resistance below 5.0 ohms?

Yes

Replace the shorted Transfer Case Motor in accordance with the Service Information.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE)

Replace the Final Drive Control Module in accordance with the Service Information.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE)

8.INTERMITTENT WIRING AND CONNECTORS

Were any problems found?

Yes