Diagnostic Test

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

1) CHECK FOR A DTC C2200-ANTI-LOCK BRAKE MODULE INTERNAL
NOTE: 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 Fame 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
1. Go To step 2).
No
1. Refer ABS-INTERMITTENT CONDITION .
2. Perform ABS VERIFICATION TEST - VER 1 .
2) CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS
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
1. Repair as necessary.
2. Perform ABS VERIFICATION TEST - VER 1 .
No
1. Go To step 3).
3) FUSED B+ CIRCUIT(S) OPEN OR HIGH RESISTANCE

Fig 1: Checking Fused B(+) Circuits
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

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
1. Go To step 4).
No
1. Repair the Fused B+ circuit(s) for an open circuit or high resistance.
2. Perform ABS VERIFICATION TEST - VER 1 .
4) GROUND CIRCUIT OPEN OR HIGH RESISTANCE

Fig 2: Checking Ground Circuits
Courtesy of DAIMLERCHRYSLER CORP.

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
1. Replace the Anti-Lock Brake Module in accordance with the Service Information.
2. Perform ABS VERIFICATION TEST - VER 1 .
No
1. Repair the Ground circuit(s) for an open circuit or high resistance.
2. Perform ABS VERIFICATION TEST - VER 1 .