C2200-ANTI-LOCK BRAKE MODULE INTERNAL
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
When the Anti-Lock Brake Module detects an internal fault, the DTC is set.
| Possible Causes |
| WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE |
| FUSED B+ CIRCUIT(S) SHORTED TO GROUND, VOLTAGE, OR OPEN |
| GROUND CIRCUIT(S) OPEN |
| ANTI-LOCK BRAKE MODULE |
Diagnostic Test
1. CHECK FOR A DTC C2200-ANTI-LOCK BRAKE MODULE INTERNALNOTE: This DTC must be active for the results of this test to be valid.
Turn the ignition on.
With the scan tool, read and record DTCs.
With the scan tool, read and record Freeze Frame information.
With the scan tool, erase DTCs.
Cycle the ignition switch from off to on.
With the scan tool, read and record DTCs
Does the scan tool display: C2200-ANTI-LOCK BRAKE MODULE INTERNAL?
Yes
- Go To 2
No
- Refer to the INTERMITTENT CONDITION diagnostic procedure.
- Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TESTING)
2. CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS
Turn the ignition off.
Visually inspect the related wiring harness. Look for any bruised, chafed, pierced, or partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
Were any problems found?
Yes
- Repair as necessary.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Go To 3
3. FUSED B+ CIRCUIT(S) OPEN OR HIGH RESISTANCE
Disconnect the Anti-Lock Brake Module harness connector.
Using a 12–volt test light connected to ground, check the (A107) and (A200) Fused B+ 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 Fused B+ circuit(s) for an open circuit or high resistance.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
4. GROUND CIRCUIT OPEN OR HIGH RESISTANCE
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
- Replace the Anti-Lock Brake Module in accordance with the Service Information.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Repair the Ground circuit(s) for an open circuit or high resistance.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).