Infiniti I35 (A33). Manual — part 119
Wheel Sensor or Rotor
NHBR0159
DIAGNOSTIC PROCEDURE
NHBR0159S01
1
INSPECTION START
Wheel sensor inspection
SBR155F
©
GO TO 2.
2
CHECK CONNECTOR
1. Disconnect connectors from ABS actuator and electric unit (control unit) connector E162 and wheel sensor connector
E164, E163, B72 and B73 of malfunction code No. Check terminals for damage or loose connections. Then reconnect
connectors.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Yes
©
GO TO 3.
No
©
INSPECTION END
3
CHECK WHEEL SENSOR CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector E162.
2. Check resistance between ABS actuator and electric unit (control unit) harness connector E162 terminals.
Front RH wheel
Terminals 4 (B/W) and 5 (L/OR)
Front LH wheel
Terminals 6 (G) and 7 (R/B)
Rear RH wheel
Terminals 1 (B) and 3 (W)
Rear LH wheel
Terminals 8 (R/W) and 9 (L/W)
Resistance: 0.8 - 1.85 k
Ω
SBR156F
Is resistance 0.8 - 1.85 k
Ω
?
Yes
©
GO TO 5.
No
©
GO TO 4.
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Wheel Sensor or Rotor
BR-61
4
CHECK WHEEL SENSOR
Check resistance of each sensor. (See NOTE)
Resistance: 0.8 - 1.85 k
Ω
SBR157F
Is resistance 0.8 - 1.85 k
Ω
?
Yes
©
Repair harness and connectors between ABS actuator and electric unit (control unit) con-
nector E162 and wheel sensor connector.
No
©
Replace wheel sensor.
5
CHECK TIRE
Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?
Yes
©
GO TO 6.
No
©
Adjust tire pressure or replace tire(s).
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Wheel Sensor or Rotor (Cont’d)
BR-62
6
CHECK WHEEL BEARING
Check wheel bearing axial end play.
Check clearance between sensor and rotor.
Clearance:
Front
0.273 - 0.925 mm (0.0107 - 0.0364 in)
Rear
0.387 - 0.992 mm (0.0152 - 0.0391 in)
SBR605AA
SBR069CA
Is axial end play and clearance within specifications?
Yes
©
GO TO 7.
No
©
Clean sensor fixing portion, or replace sensor.
7
CHECK SENSOR ROTOR
Check sensor rotor for teeth damage.
Is sensor rotor free from damage?
Yes
©
Check ABS actuator and electric unit (control unit) connector E162 pin terminals for dam-
age or the connection of ABS actuator and electric unit (control unit) harness connector
E162. Reconnect ABS actuator and electric unit (control unit) harness connector E162.
Then retest.
No
©
Replace sensor rotor.
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Wheel Sensor or Rotor (Cont’d)
BR-63
8
CHECK POWER SUPPLY
1. Disconnect wheel sensor connectors E164, E163, B72 and B73.
2. Check voltage between body side terminal of wheel sensor harness connectors E164, E163, B72 and B73 and body
ground.
SBR158F
Is voltage more than 8V?
Yes
©
Replace wheel sensor.
No
©
Replace ABS actuator and electric unit (control unit).
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Wheel Sensor or Rotor (Cont’d)
BR-64
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