Page 3057 of 5883
EXL-56
< COMPONENT DIAGNOSIS >
LIGHT & RAIN SENSOR
4. Check continuity between the light and rain sensor harness connector R11 (A) terminal 2 and ground.
Are the continuity check results as specified?
YES >> Replace the light and rain sensor.
NO >> Repair harness or connector.
4.CHECK LIGHT AND RAIN SENSOR POWER SUPPLY FOR OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the light and rain sensor connector R11 and BCM connector M20.
3. Check continuity between the light and rain sensor harness connector R11 (A) terminal 1 and the BCM
harness connector M20 (B) terminal 73.
jAre continuity check results as specified?
YES >> Replace the BCM.
NO >> Repair the harnesses or connectors.
AB
Continuity
Connector Terminal Connector Terminal
R11 2 M19 63 Yes
A
— Continuity
Connector Terminal
R11 2 Ground No
AB
Continuity
Connector Terminal Connector Terminal
R11 1 M20 73 Yes
Page 3058 of 5883

HEADLAMP AIMER SWITCH
EXL-57
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
HEADLAMP AIMER SWITCH
DescriptionINFOID:0000000001532097
The manual headlamp aiming system uses a headlamp aimer switch to adjust the axis of the headlamp aiming
motor. The headlamp aimer switch has four settings, each with a different resistance value. The headlamp
aiming motor adjusts to the proper axis based off the position of the headlamp aiming switch.
Diagnosis ProcedureINFOID:0000000001532099
1.CHECK HEADLAMP AIMER SWITCH SIGNAL FOR OPEN OR SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect headlamp aimer switch connector M56, headlamp aimer motor LH connector E36 and head-
lamp aimer motor RH connector E37.
3. Check continuity between the headlamp aimer switch connector M56 (A) terminal 1 and headlamp aimer
motor LH E37 and RH E36 (B) terminal 2.
4. Check continuity between the headlamp aimer switch connector M56 (A) terminal 1 and ground.
Are the continuity test results as specified?
YES >> GO TO 2
NO >> Repair the harness or connector.
2.CHECK HEADLAMP AIMER SWITCH
1. Check continuity between the headlamp aimer switch terminals 1 and 2 in each switch position.
Are the continuity check results as specified?
YES >> GO TO 3
NO >> Replace the headlamp aimer switch.
3.CHECK HEADLAMP AIMER SWITCH GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect headlamp aimer switch connector M56.
3. Check continuity between headlamp aimer switch connector M56 terminal 2 and ground.
Is continuity as specified?
YES >> Inspect headlamp aimer motors.
NO >> Repair harness or connector.
A
BContinuity
Connector Terminal
M56 1 Ground Yes
A
—Continuity
Connector Terminal
M56 1 Ground No
Component Terminal Switch Position Continuity
Headlamp
aimer
switch120 604 ohms
1 324 ohms
2 191 ohms
3 130 ohms
Connector Terminal — Continuity
M56 2 Ground Yes
Page 3059 of 5883
EXL-58
< COMPONENT DIAGNOSIS >
HEADLAMP (HALOGEN)
HEADLAMP (HALOGEN)
Wiring Diagram INFOID:0000000001523277
ALLWA0043GB
Page 3060 of 5883
HEADLAMP (XENON)
EXL-59
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
HEADLAMP (XENON)
Wiring DiagramINFOID:0000000001527578
ALLWA0044GB
Page 3061 of 5883
EXL-60
< COMPONENT DIAGNOSIS >
AUTO LIGHT SYSTEM
AUTO LIGHT SYSTEM
Wiring DiagramINFOID:0000000001523279
ALLWA0045GB
Page 3062 of 5883
HEADLAMP AIMING SYSTEM (MANUAL)
EXL-61
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
HEADLAMP AIMING SYSTEM (MANUAL)
Wiring DiagramINFOID:0000000001527579
ALLWA0046GB
Page 3063 of 5883
EXL-62
< COMPONENT DIAGNOSIS >
HEADLAMP AIMING SYSTEM (AUTOMATIC)
HEADLAMP AIMING SYSTEM (AUTOMATIC)
Wiring DiagramINFOID:0000000001527580
ALLWA0047GB
Page 3064 of 5883
DAYTIME LIGHT SYSTEM
EXL-63
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
DAYTIME LIGHT SYSTEM
Wiring DiagramINFOID:0000000001523278
ALLWA0048GB