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Home >> Chrysler >> 2004 >> Pacifica AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostic Procedures - Communication, Door Ajar, Electrically Heated Systems, Exterior Lighting >> Communication >> Symptom: CMTC MESSAGE MISMATCH >> Diagnostic Procedure

Diagnostic Procedure

CMTC MESSAGE MISMATCH - DIAGNOSTIC PROCEDURE

TEST ACTION APPLICABILITY
1
NOTE: All communication DTC(s) that may have set along with this DTC must be diagnosed before continuing.
With the DRBIII®, erase the DTC.Cycle the ignition on and off several times, leaving the ignition on for at least 15 seconds.With the DRBIII®, read DTCs.Did this DTC reset?
  1. Yes: Go To 2
  2. No: Go To 4
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2 Turn the ignition on.
With the DRBIII®, attempt to communicate with the CMTC Module.
Can communication be established with the CMTC Module?
  1. Yes: Go To 3
  2. No: Refer to the COMMUNICATION  and perform the appropriate symptom.

    Perform BODY VERIFICATION TEST VER-1 .

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3 Turn the ignition off.
Install a substitute CMTC Module in place of the original module.
With the DRBIII®, erase DTCs.
Turn the ignition on.
Cycle the ignition on and off, leaving the ignition in the on position for at least 15 seconds each time.
With the DRBIII®, read DTCs.
Did this DTC reset?
  1. Yes: Replace the Body Control Module in accordance with the service information.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Replace the CMTC Module in accordance with the service information.

    Perform BODY VERIFICATION TEST VER-1 .

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4
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRBIII® parameters related to the DTC while wiggling the wiring harness. Look for parameter values to change and/or a DTC to set.Refer to any Technical Service Bulletins (TSB) that may apply.Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.Were any of the above conditions present?
  1. Yes: Repair as necessary.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Test Complete.
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