T–154
ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
Diagnostic procedure
End Of Sie
STEP
INSPECTION
ACTION
1
INSPECT POWER SUPPLY CIRCUIT OF
HEADLIGHT (LH)
•
Disconnect headlight (LH) connector (4-pin).
•
Turn the ignition switch to ON.
•
Measure voltage at headlight (LH) connector
terminal 2A.
•
Is voltage
approximately 5 V
?
Yes
Go to next step.
No
Go to step 4.
2
INSPECT POWER SUPPLY CIRCUIT OF
FRONT AUTO LEVELING SENSOR
•
Turn the ignition switch to OFF and connect
headlight (LH) connector (4-pin) again.
•
Disconnect front auto leveling sensor
connector (6-pin).
•
Measure voltage at front auto leveling sensor
connector terminal D.
•
Is voltage
approximately 5 V
?
Yes
Replace front auto leveling sensor.
(See
T–32 FRONT AUTO LEVELING SENSOR REMOVAL/
INSTALLATION
)
After replacement, clear DTC and check DTC again.
•
If DTC is displayed again, go to next step.
No
Repair or replace wiring harness between front auto leveling
sensor and headlight (LH).
3
INSPECT POWER SUPPLY CIRCUIT OF
REAR AUTO LEVELING SENSOR
•
Disconnect rear auto leveling sensor
connector.
•
Measure voltage at rear auto leveling sensor
connector terminal D.
•
Is voltage
approximately 5 V
?
Yes
Replace front auto leveling sensor.
(See
T–32 REAR AUTO LEVELING SENSOR REMOVAL/
INSTALLATION
)
After replacement, clear DTC and check DTC again.
•
If DTC is displayed again, go to next step.
No
Repair or replace wiring harness between rear auto leveling
sensor and headlight (LH).
4
INSPECT HEADLIGHT (LH)
•
Disconnect auto leveling control unit (main)
connector (20-pin) and headlight (LH)
connector (4-pin).
•
Is there continuity between the following
connectors?
— Auto leveling control unit (main) connector
(terminal K) and headlight (LH) connector
(terminal 2A)
Yes
Go to next step.
No
Possible cause is an open circuit in headlight (LH). Replace
headlight (LH). (See
T–26 FRONT COMBINATION LIGHT
REMOVAL/INSTALLATION
)
5
INSPECT HEADLIGHT (LH)
•
Disconnect auto leveling control unit (main)
connector (20-pin).
•
Is there no continuity between the following
connectors?
— Terminals K and E
— Terminals K and D
— Terminals K and L
Yes
Replace auto leveling control unit.
(See
T–30 DISCHARGE HEADLIGHT CONTROL UNIT
REMOVAL/INSTALLATION
)
No
Possible cause is an open circuit in headlight (LH). Replace
headlight (LH). (See
T–26 FRONT COMBINATION LIGHT
REMOVAL/INSTALLATION
)
Summary of Contents for 6 2002
Page 104: ...F 4 LOCATION INDEX End Of Sie FUEL SYSTEM A6E390001006W01 Engine Room Side A6E3912W015...
Page 151: ...F 36 EXHAUST SYSTEM A6E3914W002...
Page 312: ...F 182 TROUBLESHOOTING QUICK DIAGNOSTIC CHART A6E398018881W02 A6E3980W001...
Page 313: ...TROUBLESHOOTING F 183 F A6E3980W002...
Page 314: ...F 184 TROUBLESHOOTING A6E3980W003...
Page 315: ...TROUBLESHOOTING F 185 F End Of Sie A6E3980W004...
Page 410: ...K 3 K...
Page 526: ...TROUBLESHOOTING K 115 K QUICK DIAGNOSIS CHART A6E568001030W04 A6E5680W001...
Page 527: ...K 116 TROUBLESHOOTING End Of Sie A6E5680W002...
Page 653: ...ON BOARD DIAGNOSTIC ABS TCS P 57 P...
Page 701: ...TROUBLESHOOTING ABS TCS DYNAMIC STABILITY CONTROL P 105 P Vehicle with ABS TCS A6E6980W002...
Page 819: ...OUTSIDE MIRROR S 60 2 THIS PAGE IS INTENTIONALLY LEFT BLANK End Of Sie...
Page 971: ...T 76 WARNING AND INDICATOR SYSTEM Operating Order A6E8118W009...
Page 1150: ...U 4 LOCATION INDEX End Of Sie CONTROL SYSTEM A6E850001042W01 L H D A6E8500W003 A6E8500W004...
Page 1152: ...U 6 LOCATION INDEX R H D A6E8500W005 A6E8500W006...