Input Test

Input Test

Note: Before testing, check for:

• blown No. 5 (7.5 A) fuse in the passenger compartment fuse/relay box.
• bent, loose or corroded terminals.

86M 2154

• A Headlight adjuster unit
• B 3 – P connector

1. Disconnect the 3 – P connectors from each headlight adjuster unit.
2. Check for continuity between the BLK terminal and body earth. There should be continuity.

• If there is no continuity, check for:

• an open in the BLK wire.
• poor earth (G401, G402).

• If there is continuity, go to step 3.

3. Check for voltage between the YEL/GRN terminal and body earth with the ignition switch ON (II). There should be battery voltage.

• If there is no voltage, check for an open in the YEL/GRN wire.
• If there is battery voltage, go to step 4.

4. Check for continuity between the BLU terminal and body earth in any switch position. There should be continuity.

• If there is no continuity, check for:

• an open in the BLU wire.
• faulty headlight adjuster switch.

• If there is continuity, go to step 5.

5. If all input tests prove OK, but the headlight adjuster does not work, check for frozen, stuck or improperly installed headlight adjuster unit.

If mechanical check is OK, replace the headlight adjuster unit.

6. After installing, recheck the system.