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Home >> Chrysler >> 2003 >> PT Cruiser Limited, Standard >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Chassis Diagnostic Procedures - Anti-Lock Brake System >> Diagnostic Information And Procedures >> Brakes (Cab) - Symptoms >> Symptom: PCI BUS COMMUNICATION >> Diagnostic Procedure

Diagnostic Procedure

PCI BUS COMMUNICATION

TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIII®, read DTCs.
With the DRBIII®, read Freeze Frame information.
With the DRBIII®, erase DTCs.
Turn the ignition off.
Turn the ignition on.
With the DRBIII®, read DTCs.
Does the DRBIII® display PCI BUS COMMUNICATION?
  1. Yes --> Go To 2
  2. No --> Go To 4
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2 Turn the ignition on.
With the DRBIII®, read EMIC DTCs.
Does the DRBIII® display ABS MESSAGE NOT RECEIVED?
  1. Yes --> Refer to SYMPTOM LIST: ABS MESSAGE NOT RECEIVED .

    Perform ABS VERIFICATION TEST - VER 1 .

  2. No --> Go To 3
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3 Turn the ignition off.
Disconnect the negative (-) battery cable.
Disconnect the CAB harness connector.
NOTE: check connector - Clean/repair as necessary.

Measure the resistance of the PCI Bus circuit between the CAB connector and the Data Link Connector (DLC).
Is the resistance below 5.0 ohms?
  1. Yes --> Replace the Controller Antilock Brake in accordance with the Service Information.

    Perform ABS VERIFICATION TEST - VER 1 .

  2. No --> Repair the PCI Bus circuit for an open.

    Perform ABS VERIFICATION TEST - VER 1 .

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4 Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.
Were any problems found?
  1. Yes --> Repair as necessary.

    Perform ABS VERIFICATION TEST - VER 1 .

  2. No --> Test Complete.
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