DESCRIPTION
The headlight beam level control system indicator light in the combination meter assembly comes on for approximately 3 seconds when the ignition switch is turned to ON. The indicator light also comes on when the headlight leveling ECU assembly detects a malfunction.
WIRING DIAGRAM
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (BATTERY - COMBINATION METER ASSEMBLY) |
(a) Disconnect the E2 combination meter assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
E2-13 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
*1 |
Front view of wire harness connector (to Combination Meter Assembly) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - HEADLIGHT LEVELING ECU ASSEMBLY) |
(a) Disconnect the A40 headlight leveling ECU assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A40-6 (WNG) - E2-22 (LVWG) |
Always |
Below 1 Ω |
A40-6 (WNG) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Headlight Leveling ECU Assembly) |
*2 |
Front view of wire harness connector (to Combination Meter Assembly) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT COMBINATION METER ASSEMBLY |
(a) Reconnect the E2 combination meter assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
E2-22 (LVWG) - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Component with harness connected (Combination Meter Assembly) |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPLACE COMBINATION METER ASSEMBLY |
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