Diagnostic Test

CHECK THE FUSE
1. Turn the ignition on.
2. Using a 12-volt test light connected to ground, check the fuse for power.
  Is the fuse good?
  
  Yes
  - Go To 3
  No
  - Go To 2
(A107) FUSED B+ CIRCUIT SHORTED TO GROUND
1. Turn the ignition off.
2. Remove the Fuse.
3. Disconnect the ABS Module harness connector.
4. Check for continuity between ground and the (A107) Fused B+ Circuit in the ABS Module harness connector.
  Is there continuity between ground and the (A107) Fused B+ circuit?
  
  Yes
  - Repair the (A107) Fused B+ circuit for a short to ground.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Go To 3
ABS PUMP MOTOR
1. Install the Fuse.
2. Turn the ignition on.
3. With the scan tool, read and record the DTCs.
4. With the scan tool, actuate the ABS pump motor.
  Did the Pump Motor operate correctly when actuated with out blowing the fuse?
  
  Yes
  - Go To 4
  No
  - Go To 5
(A107) FUSED B+ CIRCUIT OPEN OR HIGH RESISTANCE
NOTE:
The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.
1. Using a 12-volt test light connected to ground, check the (A107) Fused B+ circuit at the ABS harness connector.
  Is the test light illuminated and bright?
  
  Yes
  - Go To 5
  No
  - Repair the (A107) Fused B+ circuit for an open or high resistance.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
1. Turn the ignition off.
2. Inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
3. Inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.
4. Perform any Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Replace the Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .