With HID
NOTE: Before testing, make sure that there is no DTC and combination light switch circuit is ok.
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-
Turn the ignition switch to LOCK (0).
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Disconnect the 16P connector (A) from the headlight auto leveling control unit (B).
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Inspect the connector and socket terminals to be sure they are all making good contact.
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With the connector still disconnected, make these input tests at the connector.
Cavity
|
Wire
|
Test condition
|
Test: Desired result
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Possible cause if desired result is not obtained
|
9
|
BLK
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Under all conditions
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Check for continuity to ground: There should be continuity.
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-
Poor ground (G301)
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An open in the wire
|
1
|
LT GRN
|
Ignition switch ON (II)
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Measure the voltage to ground: There should be battery voltage.
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|
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Reconnect the connector, turn the ignition switch to ON (II), and make these input tests at the connector.
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If any tests indicates a problem, find and correct the cause, then recheck the system.
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If all the input tests prove OK, replace the headlight leveling control unit.
Cavity
|
Wire
|
Test condition
|
Test: Desired result
|
Possible cause if desired result is not obtained
|
3
|
BRN
|
Under all conditions
|
Measure the voltage to ground: There should be less than 0.5 V.
|
-
Poor ground (G301)
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An open in the wire
|
4
|
ORN
|
Under all conditions
|
Measure the voltage to ground: There should be less than 0.5 V.
|
-
Poor ground (G301)
-
An open in the wire
|
2
|
PUR
|
Ignition switch ON (II), headlight switch ON
|
Measure the voltage between the No. 2 and No. 3 terminals: There should be battery voltage.
|
|
3
|
BRN
|
11
|
LT BLU
|
Ignition switch ON (II), headlight switch ON
|
Measure the voltage between the No. 11 and No. 3 terminals: There should be about 2 to 12 V.
|
|
3
|
BRN
|
4
|
ORN
|
Ignition switch ON (II)
|
|
|
6
|
WHT
|
13
|
RED
|
4
|
ORN
|
Ignition switch ON (II)
|
|
|
7
|
PUR
|
13
|
RED
|
|