Schematic Reference: Instrument Cluster Schematics

Connector End View Reference: Instrument Panel, Gages, and Console Connector End Views and Power Roof Systems Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn ON the ignition, with the engine OFF.
2. Watch the outside temperature gage on the auxiliary gage package

Does the temperature displayed on the temperature gage match the current room temperature?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

1. Disconnect the ambient air temperature sensor.
2. Install a scan tool.

Important: Verify the J 33431-C Signal Generator and Instrument Panel Tester resistance settings with a DMM.

3. Connect the J 33431-C between the signal circuit of the ambient air temperature sensor and the ground circuit of the ambient air temperature sensor.
4. Turn ON the ignition, with the engine OFF.
5. Vary the resistance on the J 33431-C from 1000-80,000 ohms.
6. Observe the Ambient Air Temp. Sensor parameter in the roof and door module Data 1 data list.

Does the Ambient Air Temp. Sensor parameter change value with change in resistance?

Go to Step 4

Go to Step 5

Does the value of the temperature gage match the value of the Ambient Temp. Sensor parameter with change in resistance?

Go to Step 8

Go to Step 9

Test the ambient air temperature sensor signal circuit for a high resistance, a short to voltage, or a short to ground. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 6

Test the ground circuit of the ambient air temperature sensor for a high resistance or a short to voltage. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 7

Inspect for poor connections at the harness connector of roof and door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 10

Inspect for poor connections at the harness connector of the ambient air temperature sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 11

Inspect for poor connections at the harness connector of the auxiliary gage package. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 13

Go to Step 12

Replace the roof and door module. Refer to Folding Top Control Module Replacement .

Did you complete the replacement?

Go to Step 13

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Replace the ambient air temperature sensor. Refer to Ambient Air Temperature Gage Sensor Replacement .

Did you complete the replacement?

Go to Step 13

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Replace the auxiliary gage package. Refer to Outside Air Temperature and Voltmeter and Torque Meter Gauge Package Replacement .

Did you complete the replacement?

Go to Step 13

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1. Use the scan tool in order to clear the IPC DTCs.
2. Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2