Test the high beam headlamps in the flash-to-pass mode.

Do the high beam headlamps work in the flash-to-pass mode?

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Go to Step 2

Go to Step 3

Replace the headlamp combination switch.

Is the repair complete?

--

System OK

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Test fuses EF25 and EF26.

Is fuse EF25 and EF26 open?

--

Go to Step 4

Go to Step 5

1. Test for a short circuit. Repair the short circuit, if necessary.
2. Replace the fuse.

Is the repair complete?

--

System OK

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1. Turn ON the high beam headlamps.
2. Measure the voltage at fuse EF25 and EF26.

Does the voltage available at fuse EF25 and EF26 equal the value specified?

11-14 V

Go to Step 7

Go to Step 6

Temporarily substitute the illumination lamp relay in place of the headlamp high relay.

Do the headlamps operate with the substituted relay?

--

Go to Step 7

Go to Step 8

Reinstall the illumination lamp relay in its original position, and install a new headlamp relay.

Is the repair complete?

--

System OK

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1. Install the headlamp high relay.
2. Measure the voltage at headlamp switch connector terminal 4.

Does the voltage equal the value specified?

11-14 V

Go to Step 10

Go to Step 9

Repair the open circuit between headlamp high relay terminal 86 and headlamp switch connector terminal 4.

Is the repair complete?

--

System OK

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1. Disconnect the headlamp connector.
2. Turn the headlamp switch to the high-beam position.
3. Use an ohmmeter to measure the continuity between terminals 6 and 4 of the headlamp switch.

Does the ohmmeter indicate continuity?

--

Go to Step 11

Go to Step 2

1. Connect the headlamp switch connector.
2. Turn the headlamp switch to the high-beam position.
3. Measure the voltage at the light switch connector terminal 2.

Does the voltage equal the value specified?

11-14 V

Go to Step 13

Go to Step 12

Repair the open circuit between the headlamp switch connector terminal 6 and light switch connector terminal 2.

Is the repair complete?

--

System OK

--

1. Disconnect the light switch connector.
2. Turn the headlamp switch to the high-beam position.
3. Use an ohmmeter to measure the continuity between terminals 2 and 3 of the light switch.

Does the ohmmeter indicate continuity?

--

Go to Step 14

Go to Step 2

Repair the open circuit between ground and the light switch connector terminal 3.

Is the repair complete?

--

System OK

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1. Turn ON the high beam headlamps.
2. Measure the voltage at headlamp terminal 1 with the high beams selected.

Does the voltage available at the headlamp connector terminal 1 equal the value specified?

11-14 V

Go to Step 17

Go to Step 16

Repair the open circuit between fuse EF19 and the high beam headlamps.

Is the repair complete?

--

System OK

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1. Disconnect the headlamp connectors.
2. Connect an ohmmeter between the ground and the headlamp connector terminal 3.

Does the ohmmeter indicate continuity?

--

Go to Step 19

Go to Step 18

Repair the open circuit between the ground and the headlamp connector terminal 3.

Is the repair complete?

--

System OK

--

Replace the faulty headlamps. Refer to Headlamp Replacement .

Is the repair complete?

--

System OK

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