Test 1A - Checking For Diagnostic Trouble Codes
Chrysler does not provide any trouble code number-driven diagnosis for this system. Testing information is provided for codes retrieved via the Chrysler Diagnostic Read Out Box (DRB) in code description text format only. ALLDATA Users have reported success using the code number with the description by a generic scan tool matching the description to diagnostic information listed.
PROCEDURE
1. Your diagnostic test procedure must begin with a thorough visual inspection of the ABS system for damaged components or disconnected connectors. The brake lamps must be operational and if they are not, repair them prior to continuing.
2. Connect the Diagnostic Readout Box (DRB), or equivalent scan tool, to the data link connector located under the dash to the right of the steering column. If the scan tool does not power up, check the power and ground supplies to the connector
3. Select "Anti-Lock Brakes". Turn the ignition on. If the scan tool displays "No Response", perform test 20-A. Test 20A - DRB "No Response" Message
4. Read and record all ABS Diagnostic Trouble Codes (DTCs). If the "Controller Anti-Lock Brake (CAB) Power Feed Circuit" trouble code is present, it must be repaired prior the addressing any other DTCs. If any additional codes are present, proceed to the appropriate test.
5. If there are no trouble codes present, select "Inputs/Outputs" and read the brake switch input as you press and release the brake pedal.
- If the display does not match the state of the pedal, perform Test 18-A. Test 18A - ABS Warning Lamp
- If a problem with the yellow "ABS" warning lamp or the red "BRAKE" lamp exists, refer to the system tests below. Read the traction control switch input as you press and release the switch. If the display does not match the state of the lamp perform test 17-A. Test 17A - Stop Lamp Switch
6. If no other problems are found, it will be necessary to road test the vehicle. Perform several antilock stops from above 50 km/h (30 mph) and then repeat steps 2, 3, and 4. If any trouble codes are present, proceed to the appropriate test. Monitors, Trips, Drive Cycles and Readiness Codes
7. The following conditions should be considered "NORMAL" operation, and no repairs should be attempted to correct them.
- Brake pedal feedback during an ABS stop (clicking, vibrating)
- Clicking, groaning or buzzing at 12 km/h (7 mph) (drive off self test)
- Groaning noise during an ABS stop
- Slight brake pedal drop and pop noise when ignition is initially turned ON
- Brake pedal ratcheting down at the end of an ABS stop
8. If the complaint is ABS "cycling" at the end of a stop at low speeds, it may be caused by a marginal wheel speed sensor signal. The sensor air gap, tone wheel condition, and or brakes hanging up are possible causes to this condition.
DRB DIAGNOSTIC TROUBLE CODE DISPLAYED: DIAGNOSTIC TEST
CAB Power Feed Circuit: 11A
Test 11A - CAB Power Feed Circuit
Chrysler Collision Detection (CCD) Communication: 14A
Test 14A - CCD Communication
Controller Failure: 12A
Test 12A - Controller Failure
Left Front Sensor Circuit Failure: 2A
Test 2A - Left Front Sensor Circuit Failure
Left Front Sensor Signal Failure: 3A
Test 3A - Left Front Sensor Signal Failure
Left Rear Sensor Circuit Failure: 6A
Test 6A - Left Rear Wheel Speed Sensor
Left Rear Sensor Signal Failure: 7A
Test 7A - Left Rear Wheel Speed Sensor
Pump Motor Circuit Not Working Properly: 10A
Test 10A - Pump Motor Circuit Not Working Properly
Right Front Sensor Circuit Failure: 4A
Test 4A - Right Front Sensor Circuit Failure
Right Front Sensor Signal Failure: 5A
Test 5A - Right Front Sensor Signal Failure
Right Rear Sensor Circuit Failure: 8A
Test 8A - Right Rear Wheel Speed Sensor
Right Rear Sensor Signal Failure: 9A
Test 9A - Right Rear Sensor Signal Failure
System Overvoltage: 15A
Test 15A - System Overvoltage
System Undervoltage: 13A
Test 13A - System Undervoltage
SYSTEM TESTS
ABS Warning Lamp: 18A
Test 18A - ABS Warning Lamp
No Response: 20A
Test 20A - DRB "No Response" Message
Red Brake Warning Lamp: 19A
Test 19A - Red Brake Warning Lamp Circuit
Stop Lamp Switch: 17A
Test 17A - Stop Lamp Switch
Traction Control Switch: 16A
Test 16A - Traction Control Switch