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*4WD INDICATOR INACCURATE - DIESEL ONLY For a complete wiring diagram Refer to Section 8W. Possible Causes 4WD MODE SENSOR DTC PRESENT INTERMITTENT CONDITION TRANSFER CASE POSITION SENSOR INSTRUMENT CLUSTER Diagnostic Test 1. 4WD MODE SENSOR DTC PRESENT NOTE: With the scan tool, ensure that the Instrument Cluster is configured for the correct transfer case Does the scan tool display any 4WD Mode Sensor DTCs? Yes >> Refer to the DRIVEABILITY category and perform the appropriate symptom. No >> Go To 2 2. INSTRUMENT CLUSTER Perform the Instrument Cluster Self Test. Depress and hold the Trip Odometer reset button while turning the ignition from the off to the on position. Did the 4WD indicator in question illuminate? Yes >> Go To 3 No >> Replace and configure the Instrument Cluster in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 3. TRANSFER CASE POSITION SENSOR Turn the ignition on. With the scan tool in Sensors, read the T-Case Position while moving the transfer case shift lever through all of the The scan tool should display the following values: 4WD Lo: 0.15 - 0.40 volts Neutral: 0.68 - 0.98 volts Full Time: 1.23 - 1.56 volts Part Time: 1.78 - 2.12 volts 2WD: 2.43 - 2.77 volts Is the Transfer Case Position voltage within the specified ranges? Yes >> The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wir- No >> Replace the Transfer Case Position Sensor in accordance with the Service Information. Perform POWERTRAIN VERIFICATION TEST VER - 2. (Refer to 9 - ENGINE - DIAGNOSIS AND 8J - 66 INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS KJ |