2006 INFINITI M35 ground

LT-176
ACTIVE AFS
Revision: 2006 January2006 M35/M45
8. CHECK HEIGHT SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and height sensor connector.
3. Check continuity between AFS control unit harness connector
(A) F110 terminal 8 and height sensor harness connector (B)
B103 terminal 3.
OK or NG
OK >> Replace height sensor. Refer to LT- 1 9 2 , "Removal and
Installation of Height Sensor" .
NG >> Repair harness or connector.
9. CHECK DIAGNOSIS RESULT
Select “ADAPTIVE LIGHT” on CONSULT-II. Select “SELF-DIAG
RESULTS” on “SELECT DIAG MODE” screen.
Is DTC B2521 ECU CIRC detected?
YES >> Refer to LT- 1 7 8 , "DTC B2521 ECU CIRC" .
NO >> GO TO 10.
10. CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect height sensor connector.
3. Turn ignition switch ON.
4. Check voltage between AFS control unit harness connector
F110 terminal 6 and ground.
OK or NG
OK >> GO TO 11.
NG >> GO TO 12.8 – 3 : Continuity should exist.
PKIC0672E
SKIB4973E
6 – Ground : Approx. 4 – 6 V
PKIC0673E

ACTIVE AFS
LT-177
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Revision: 2006 January2006 M35/M45
11 . CHECK HEIGHT SENSOR SIGNAL CIRCUIT (SHORT CIRCUIT)
1. Disconnect AFS control unit connector.
2. Check continuity between AFS control unit harness connector
F110 terminal 28 and ground.
OK or NG
OK >> Replace height sensor. Refer to LT- 1 9 2 , "Removal and
Installation of Height Sensor" .
NG >> Repair harness or connector.
12. CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT (SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harness connector
F110 terminal 6 and ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> Repair harness or connector.28 – Ground : Continuity should not exist.
SKIB4970E
6 – Ground : Continuity should not exist.
PKIC0674E

LT-178
ACTIVE AFS
Revision: 2006 January2006 M35/M45
DTC B2521 ECU CIRCNKS003QR
1. CHECK SENSOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 2.
NG >>
If voltage is less than approx. 4 V, GO TO 3.
If voltage is more than approx. 6 V, GO TO 4.
2. CHECK SENSOR SIGNAL
Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >>
If voltage is less than approx. 0.25 V, GO TO 5.
If voltage is more than approx. 4.75 V, GO TO 6.
3. CHECK SENSOR POWER SUPPLY CIRCUIT (GROUND SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harness connector
and ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> GO TO 7.
(+)
(-) Voltage
AFS control unit
connectorTerminal
F1104
Ground Approx. 4 – 6V 6
24
PKIC0675E
(+)
(-) Voltage
AFS control unit
connectorTerminal
F1109
Ground Approx. 0.25 – 4.75 V 28
29
PKIC0676E
AFS control unit
GroundContinuity
Connector Terminal
F1104
No 6
24
PKIC0677E

ACTIVE AFS
LT-179
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Revision: 2006 January2006 M35/M45
4. CHECK SENSOR POWER SUPPLY CIRCUIT (IGN POWER SUPPLY SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Turn ignition switch ON.
4. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> GO TO 8.
5. CHECK SENSOR SIGNAL CIRCUIT (GROUND SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harness connector
and ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> GO TO 7.
6. CHECK SENSOR SIGNAL CIRCUIT (IGN POWER SUPPLY SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Turn ignition switch ON.
4. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> GO TO 8.
(+)
(-) Voltage
AFS control
unit connectorTe r m i n a l
F1104
Ground Approx. 0 V 6
24
PKIC0678E
AFS control unit
GroundContinuity
Connector Terminal
F1109
No 28
29
PKIC0679E
(+)
(-) Voltage
AFS control unit
connectorTerminal
F1109
Ground Approx. 0 V 8
29
PKIC0680E

LT-180
ACTIVE AFS
Revision: 2006 January2006 M35/M45
7. CHECK SENSOR SIGNAL AND POWER SUPPLY CIRCUIT (GROUND SHORT CIRCUIT)
1. Disconnect height sensor connector, front combination lamp LH and RH connector.
2. Check continuity between AFS control unit harness connector
and ground.
OK or NG
OK >> Replace height sensor, front combination lamp LH or RH with malfunction at the preceding pro-
cess 3 or 5. Refer to LT- 1 9 2 , "
Removal and Installation of Height Sensor" or LT- 1 9 0 , "Removal
and Installation of Front Combination Lamp" .
NG >> Repair harness or connector.
8. CHECK SENSOR SIGNAL AND POWER SUPPLY CIRCUIT (IGN POWER SUPPLY SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect height sensor connector, front combination lamp LH and RH connector.
3. Turn ignition switch ON.
4. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> Replace height sensor, front combination lamp LH or RH with malfunction at the preceding pro-
cess 4 or 6. Refer to LT- 1 9 2 , "
Removal and Installation of Height Sensor" or LT- 1 9 0 , "Removal
and Installation of Front Combination Lamp" .
NG >> Repair harness or connector.
AFS control unit
GroundContinuity
Connector Terminal
F1104
No 6
9
24
28
29
PKIC0681E
(+)
(-) Voltage
AFS control unit
connectorTerminal
F1104
Ground Approx. 0 V 6
9
24
28
29
PKIC0682E

ACTIVE AFS
LT-185
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Revision: 2006 January2006 M35/M45
Circuit)" .
AFS Switch Does Not OperateNKS003QU
1. CHECK AFS SWITCH SIGNAL 1
1. Turn ignition switch ON.
2. Select “ADAPTIVE LIGHT” on CONSULT-II. Select “DATA
MONITOR” on “SELECT DIAG MODE” screen.
3. Make sure that “AFS SW” turn ON-OFF according to AFS switch
operation.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> GO TO 2.
2. CHECK AFS SWITCH
1. Turn ignition switch OFF.
2. Disconnect AFS switch connector.
3. Check continuity AFS switch.
OK or NG
OK >> GO TO 3.
NG >> Replace AFS switch. Refer to LT- 1 9 1 , "
Removal and
Installation of AFS Switch" .
3. CHECK AFS SWITCH SIGNAL 2
1. Connect AFS switch connector.
2. Turn ignition switch ON.
3. Check voltage between AFS control unit harness connector and
ground according to AFS switch operation.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >>
If voltage is approx. 0V and stays unchanged, GO TO 4.
If voltage is battery voltage and stays unchanged, GO TO 6.
SKIB4793E
AFS switch
Condition Continuity
Te r m i n a l
14AFS switch is ON. No
AFS switch is OFF. Yes
PKIC0684E
(+)
(-) Condition Voltage
AFS control
unit connectorTerminal
F110 3 GroundAFS switch is ON. Approx. 0 V
AFS switch is OFF. Battery voltage
PKIC0683E

LT-186
ACTIVE AFS
Revision: 2006 January2006 M35/M45
4. CHECK AFS SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS switch connector.
3. Turn ignition switch ON.
4. Check voltage between AFS switch harness connector M96 ter-
minal 1 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK AFS SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS switch harness connector (A)
M96 terminal 4 and AFS control unit harness connector (B) F110
terminal 3.
OK or NG
OK >> Check connector for connection, bend and loose fit.
NG >> Repair harness or connector.
6. CHECK AFS SWITCH CIRCUIT (IGN POWER SUPPLY SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and AFS switch connector.
3. Turn ignition switch ON.
4. Check voltage between AFS control unit harness connector
F110 terminal 3 and ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> Repair harness or connector.1 – Ground : Battery voltage
PKIC0685E
4 – 3 : Continuity should exist.
PKIC0686E
3 – Ground : Battery voltage
SKIB4992E

ACTIVE AFS
LT-187
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Revision: 2006 January2006 M35/M45
Auto Aiming Does Not Operate (Check Aiming Motor System Circuit)NKS003QV
1. CHECK AIMING MOTOR
1. Start engine and turn lighting switch to 2ND position.
2. Select “ADAPTIVE LIGHT” on CONSULT-II. Select “ACTIVE
TEST” on “SELECT DIAG MODE” screen.
3. Select “LEVELIZER TEST” on “SELECT TEST ITEM” screen.
4. Touch “ORIGIN” or “PEAK” screen.
5. Make sure of aiming motor operation.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 1 , "Removal
and Installation of AFS Control Unit" .
NG >> GO TO 2.
2. CHECK AIMING MOTOR DRIVE SIGNAL
1. Touch “ORIGIN” or “PEAK” screen in “LEVELIZER TEST”.
2. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 6.
3. CHECK AIMING MOTOR DRIVE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Start engine.
4. Touch “ORIGIN” or “PEAK” screen in “LEVELIZER TEST”.
5. Check voltage between front combination lamp RH harness
connector and front combination lamp LH and RH harness con-
nector and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
SKIB4796E
(+)
(-) Condition Voltage
AFS control unit
connectorTerminal
RH
F11019
GroundORIGIN Approx. 10.6 V
PEAK Approx. 1.9 V
LH 40ORIGIN Approx. 10.6 V
PEAK Approx. 1.9 V
PKIC0687E
(+)
(-) Condition Voltage
Front combination
lamp connectorTerminal
RH E70 12
GroundORIGIN Approx. 10.6 V
PEAK Approx. 1.9 V
LH E71 12ORIGIN Approx. 10.6 V
PEAK Approx. 1.9 V
PKIC0688E