1. Disconnect the trip calculator/ driver information connector.
2. Turn the headlamp switch to the PARK position.
3. Set the headlamp dimmer switch to the MAX position.
4. Use a J 39200 digital multimeter (DMM) in order to measure the voltage between the trip calculator/ driver information display harness connector terminal B 1/P and ground.

Is the measured voltage within the specified value?

9-14 V

Go to Step 4

Go to Step 2

Use a J 39200 DMM in order to backprobe between the headlamp switch harness connector terminal H and ground.

Is the measured voltage within the specified value?

9-14 V

Go to Step 3

Go to Lighting Systems

1. Repair the poor connection or the open in CKT 8 between the trip calculator/ driver information display harness connector terminal B 1/P and the headlamp switch harness terminal H.
2. Inspect the system.

Is the repair complete?

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System OK

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Move the headlamp dimmer switch to the MIN position while observing the J 39200 DMM.

Does the voltage drop as the dimmer switch is moved from the MAX position to the MIN position?

--

Go to Step 5

Go to Lighting Systems

Use the J 39200 DMM in order to measure the voltage between the trip calculator/ driver information display harness connector terminals B 1/P and B 4/O.

Is the voltage the same as it was in Step 4?

--

Go to Step 7

Go to Step 6

1. Repair the poor connection or the open in CKT 1450 between the trip calculator/ driver information display harness connector terminal B 4/O and G200.
2. Inspect the system.

Is the repair complete?

--

System OK

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1. Replace the trip calculator/ driver information display. Refer to Driver Information Center Module Replacement .
2. Inspect the system.

Is the repair complete?

--

System OK

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