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Home >> Chrysler >> 2005 >> Pacifica Limited >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostic Procedures - Diagnostic Information And Procedures - HVAC, Ignition Power Accessory, Instrument Cluster, Interior Lighting, Navigation, Overhead Console >> Heating & A/C >> Symptom: TX FAILURE (ACTIVE) - MTC >> Diagnostic Procedure

Diagnostic Procedure

TX FAILURE (ACTIVE) - MTC SYMPTOM CHART

TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIII®, read active HVAC DTCs.
Does the DRBIII® display any additional HVAC DTCs?
Yes --> Return to the Heating & A/C symptom list and choose the symptom(s).
Perform BODY VERIFICATION TEST - VER 1 .
No --> Go To 2		 All
2 Turn the ignition on.
With the DRBIII®, attempt to communicate with the Powertrain Control Module (PCM).
With the DRBIII®, attempt to communicate with the Body Control Module (BCM).
With the DRBIII®, attempt to communicate with the Integrated Power Module (IPM).
Was the DRBIII® able to communicate with the PCM, BCM and IPM?
Yes --> Go To 3
No --> Refer to the COMMUNICATION category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1 .		 All
3 Turn the ignition on.
With the DRBIII®, erase HVAC DTCs.
Cycle the ignition switch and wait approximately 1 minute.
With the DRBIII®, read HVAC DTCs.
Did this DTC reset?
Yes --> Replace the A/C Heater Control in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1 .
No --> Using the wiring schematic as a guide, inspect the related wiring for chafed, pierced, pinched, and partially broken wires. Inspect the related connectors for broken, bent, pushed out, and corroded terminals. Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1 .		 All
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