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Home >> Chrysler >> 2004 >> Pacifica AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostic Procedures - HVAC, Ignition Power Accessory, Instrument Cluster, Interior Lighting, Navigation, Overhead Console, Power Door Locks/RKE >> Heating & A/C >> Symptom: EVAP TEMP SENSOR SHORTED (ACTIVE) >> Diagnostic Procedure

Diagnostic Procedure

EVAP TEMP SENSOR SHORTED (ACTIVE) - DIAGNOSTIC PROCEDURE

TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the in-line C202 harness connector.
Turn the ignition on.
With the DRBIII®, read the active DTCs.
Does the DRBIII® display: EVAP TEMP SENSOR OPEN?
  1. Yes: Check the Evap Temp Sensor Signal circuit between the in-line C202 harness connector (HVAC side) and the Evap Temp Sensor for a short to ground. Repair as necessary. If Ok, replace the Evaporator Temperature Sensor.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Go To 2
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2 Turn the ignition off.
Disconnect the ATC C1 harness connector.
Disconnect the in-line C202 harness connector.
Measure the resistance between ground and the Evaporator Temperature Sensor Signal circuit (IP side).
Is the resistance above 100k ohms?
  1. Yes: Go To 3
  2. No: Repair the Evaporator Temperature Sensor Signal circuit between the ATC C1 harness connector and the in-line C202 harness connector (IP side) for a short to ground.

    Perform BODY VERIFICATION TEST VER-1 .

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3 Turn the ignition off.
Disconnect the ATC C1 harness connector.
Disconnect the in-line C202 harness connector.
Measure the resistance between the Evaporator Temperature Sensor Signal circuit and the Sensor Ground circuit (IP side).
Is the resistance above 100k ohms?
  1. Yes: Replace the Automatic Temperature Control (ATC) in accordance with the Service Information.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Repair the Evaporator Temperature Sensor Signal circuit between the ATC C1 harness connector and the in-line C202 harness connector (IP side) for a short to Sensor Ground.

    Perform BODY VERIFICATION TEST VER-1 .

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