Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, clear DTC's.
3. Turn the ignition off to the lock position.
4. Ignition on, engine not running.
5. With the scan tool, actuate the ABS pump motor.
  Did the Pump Motor operate when actuated?
  
  No
  - Go To 2.
  Yes
  - Go To 5.
(A107) FUSED B+ CIRCUIT FOR AN OPEN OR HIGH RESISTANCE

Fig 1: Checking Fused B+ Circuit For An Open Or High Resistance
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Disconnect the ABS Module harness connector.
  NOTE:
  Check connector - Clean/repair as necessary.
3. Using a 12-volt test light connected to ground, check the (A107) Fused B+ Circuit.
  NOTE:
  The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
  
  Is the test light illuminated and bright?
  
  Yes
  - Go To 3.
  No
  - Repair the (A107) Fused B+ Circuit for an open circuit or high resistance. Inspect the related fuse. If the fuse is open, check the circuit for a short to ground.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
(Z107) or (Z127) GROUND CIRCUIT FOR AN OPEN OR HIGH RESISTANCE

Fig 2: Checking Ground Circuits For An Open Or High Resistance
Courtesy of CHRYSLER GROUP, LLC
1. Using a 12-volt test light connected to 12-volts, check the (Z107) and (Z127) Ground circuits.
  NOTE:
  The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
  
  Is the test light illuminated and bright?
  
  Yes
  - Go To 4.
  No
  - Repair the (Z107) or (Z127) Ground Circuit(s) for an open circuit or high resistance.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
ANTILOCK BRAKE SYSTEM (ABS) MODULE
1. Turn the ignition off to the lock position.
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 Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - If no other problems are found, replace the Antilock Brake System (ABS) Module in accordance with the Service Information.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
WIRING HARNESS INSPECTION
1. Turn the ignition off to the lock position.
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 Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Test Complete.