*NO RESPONSE FROM FDCM (FINAL DRIVE CONTROL MODULE)

For a complete wiring diagram Refer to Section 8W.

Possible Causes

(A959) FUSED B(+) CIRCUIT OPEN OR SHORTED

(Z905) GROUND CIRCUIT OPEN

(F943) FUSED RUN/START RELAY OUTPUT CIRCUIT OPEN OR SHORTED

(D65) CAN C BUS (+) CIRCUIT OPEN

(D64) CAN C BUS (-) CIRCUIT OPEN

ANTILOCK BRAKE MODULE

Diagnostic Test

1.TEST FOR INTERMITTENT CONDITION

NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.

NOTE: Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding.

Does the scan tool display a red X next to the module?

Yes

Go To 2

The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.

2.(A959) FUSED B(+) CIRCUIT OPEN OR SHORTED

Does the test light illuminate brightly for each circuit?

Yes

Go To 3

Repair the (A959) Fused B(+) circuit for an open or short.
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

3.(Z905) GROUND CIRCUIT OPEN

Does the test light illuminate brightly?

Yes

Go To 4

Repair the (Z905) ground circuit for an open.
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

4.(F943) FUSED RUN/START RELAY OUTPUT CIRCUIT OPEN OR SHORTED

Does the test light illuminate brightly?

Yes

Go To 5

Repair the (F943) Fused Run/Relay Output circuit for an open or short.
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

5.(D65) CAN C BUS (+) CIRCUIT OPEN

Is resistance below 5.0 ohms?

Yes

Go To 6

Repair the (D65) CAN C Bus (+) circuit for an open.
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

6.(D64) CAN C BUS (-) CIRCUIT OPEN

Is resistance below 5.0 ohms?

Yes

Replace the Final Drive Control Module in accordance with the service information.
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

Repair the (D64) CAN C Bus (-) circuit for an open.
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).