1. Turn the headlamp switch to park.
2. Set the IP dimmer switch to maximum intensity.
3. Using a test lamp connected to ground, backprobe the IP dimmer switch connector terminal D.

Does the test lamp light?

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Go to Step 5

Go to Step 2

Using a test lamp connected to ground, backprobe the IP dimmer switch connector terminal A.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

Repair the open in circuit 9 between the IP dimmer switch and S226.

Is the repair complete?

--

System OK

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1. Test for a poor connection at the IP dimmer switch.
2. If the connections are OK, replace the headlamp switch.

Is the repair complete?

--

System OK

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Using a test lamp connected to ground, connect a test lamp from the IP fuse block terminal E5 to ground.

Does the test lamp light?

--

Go to Step 6

Go to Step 7

Repair the open in circuit 8 between the IP fuse block and S224.

Is the repair complete?

--

System OK

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Repair the open in circuit 44 between the IP fuse block and the IP dimmer switch.

Is the repair complete?

--

System OK

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