Diagnostic Test
WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
- 1) CHECK FOR A DTC C121E-BRAKE PRESSURE SENSOR COMPARATIVE PERFORMANCE 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 Frame information.
With the scan tool, erase DTCs.
Start the engine.
Depress and release the brake pedal.
With the scan tool, read and record DTCs.
Does the scan tool display: Does the scan tool display: C121E-BRAKE PRESSURE SENSOR COMPARATIVE PERFORMANCE?
Yes
- Go To 2).
No
- Refer to ABS INTERMITTENT CONDITION .
- Perform ABS VERIFICATION TEST - VER 1 .
- 2) RECHECK FOR A DTC C121E-BRAKE PRESSURE SENSOR CIRCUIT
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.
Start the engine.
Depress and release the brake pedal.
With the scan tool, read and record DTCs.
Does the scan tool display: C121E-BRAKE PRESSURE SENSOR COMPARATIVE PERFORMANCE?
Yes
- Replace the ICU in accordance with the Service Information.
- Perform ABS VERIFICATION TEST - VER 1 .
No
- Test complete