Electrical Equipment

No Response from Anti-Lock Brake Module






For a complete wiring diagram, refer to.






Test Step 1 - Test for Intermittent Condition

• Check for any TSBs related to the condition. Perform any applicable procedures before continuing.

• Turn the ignition on.

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

• With the scan tool, select ECU View.

• 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.

• Check the totally integrated power module 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 Test Step 2

No

• 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.

Test Step 2 - Fused B(+) Circuit Open or Shorted






• Turn the ignition off.

• Disconnect the anti-lock brake module harness connector.

• Using a 12 volt test lamp connected to ground, check each fused B(+) circuit.

Does the test lamp illuminate brightly for each circuit?

Yes

• Go to Test Step 3

No

• Repair the fused B(+) circuit for an open or short.

• Perform the ABS Verification Test. Refer to => [ ABS Verification Test ] ABS Verification Test.

Test Step 3 - Ground Circuit Open






• Using a test lamp connected to 12 volts, check the ground circuit.

Does the test lamp illuminate brightly for each circuit?

Yes

• Go to Test Step 4

No

• Repair the ground circuit for an open.

• Perform the ABS Verification Test. Refer to => [ ABS Verification Test ] ABS Verification Test.

Test Step 4 - Fused Ignition Switch RUN/START Circuit Open or Shorted






• Turn the ignition on.

• Using a test lamp connected to ground, check the ignition switch RUN/START circuit.

Does the test lamp illuminate brightly?

Yes

• Go to Test Step 5

No

• Repair the ignition switch RUN/START circuit for an open or short.

• Perform the ABS Verification Test. Refer to => [ ABS Verification Test ] ABS Verification Test.

Test Step 5 - CAN C Bus (+) Circuit Open






• Turn the ignition off.

• Disconnect the totally TIPM C7 harness connector.

• Measure the resistance of the CAN C bus (+) circuit between the TIPM C7 harness connector and the anti-lock brake module connector.

Is the resistance less than 5.0 ohms?

Yes

• Go to Test Step 6

No

• Repair the CAN C bus (+) circuit for an open.

• Perform the ABS Verification Test. Refer to => [ ABS Verification Test ] ABS Verification Test.

Test Step 6 - CAN C Bus (-) Circuit Open






• Measure the resistance of the CAN C bus (-) circuit between the TIPM C7 harness connector and the anti-lock brake module connector.

Is the resistance less than 5.0 ohms?

Yes

• Replace the anti-lock brake module.

• Perform the ABS Verification Test. Refer to => [ ABS Verification Test ] ABS Verification Test.

No

• Repair the CAN C bus (-) circuit for an open.

• Perform the ABS Verification Test. Refer to => [ ABS Verification Test ] ABS Verification Test.