Infiniti I35 (A33). Manual — part 139
Inspection 6 Yaw Rate/Side G and The Circuit
Between Yaw Rate/Side G and VDC/TCS/ABS
Control Unit
=NHBR0275
Inspection procedure
1
SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
MTBL1272
CAUTION:
When the vehicle on a turn-table at an entrance of parking lot or on a moving unit, the VDC OFF indicator lamp
turns ON, and the self-diagnosis with CONSULT-II may indicate that the yaw rate sensor system is malfunction. In
this case, the yaw rate sensor is not malfunction. Move the vehicle from the turn-table or other moving unit, and
restart the engine. This will return the status normal.
Are “YAW RATE SENSOR” and “SIDE G-SEN CIRCUIT” indicated in the self-diagnosis results?
©
GO TO 2.
2
SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors of the yaw rate/side G sensor and the VDC/TCS/ABS control unit.
SBR192F
2. Check for continuity between the VDC/TCS/ABS control unit (harness connector B57) and the yaw rate/side G sensor
(harness connector B60).
MTBL1385
Is inspection result OK?
OK
©
GO TO 3.
NG
©
Repair or replace the disconnected harness.
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
VDC
Inspection 6 Yaw Rate/Side G and The Circuit Between Yaw Rate/Side G and VDC/TCS/ABS Control Unit
BR-141
3
YAW RATE/SIDE G SENSOR CIRCUIT CHECK
Check that the “YAW RATE SEN” and the “SIDE G-SENSOR” are in normal operation in “DATA MONITOR”.
MTBL1274
Is inspection result OK?
OK
©
Perform the VDC/TCS/ABS control unit self-diagnosis again.
NG
©
The yaw rate/side G sensor malfunction. After replacing the sensor, perform the self-di-
agnosis of the VDC/TCS/ABS control unit again.
Inspection 7 Solenoid Valve, VDC Switch-over
Solenoid Valve and Circuit
NHBR0276
Inspection procedure
1
SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
MTBL1275
Are any self-diagnosis result items above indicated?
©
GO TO 2.
2
SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect the VDC/TCS/ABS control unit connector B57 and solenoid valve connectors E168 and E169. Securely
connect them again.
2. Perform the self-diagnosis again.
Are any self-diagnosis result items indicated again?
Yes
©
GO TO 3.
No
©
Repair or replace the poorly connected connector.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
VDC
Inspection 6 Yaw Rate/Side G and The Circuit Between Yaw Rate/Side G and VDC/TCS/ABS Control Unit (Cont’d)
BR-142
3
SOLENOID VALVE INPUT SIGNAL CHECK
1. Disconnect the VDC/TCS/ABS control unit connector B57.
SBR194F
2. Check the resistance value between the VDC/TCS/ABS control unit (harness connector B57) and body ground.
MTBL1562
Is inspection result OK?
OK
©
GO TO 4.
NG
©
Check the VDC/TCS/ABS control unit power supply circuit.
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
VDC
Inspection 7 Solenoid Valve, VDC Switch-over Solenoid Valve and Circuit (Cont’d)
BR-143
4
SOLENOID VALVE LINE CHECK
1. Disconnect connectors for the VDC/TCS/ABS control unit and the ABS actuator.
SBR196F
2. Check for continuity between the VDC/TCS/ABS control unit (harness connector B57) and the ABS actuator (harness
connectors E168 and E169).
MTBL1387
Is inspection result OK?
OK
©
GO TO 5.
NG
©
Harness disconnection between the VDC/TCS/ABS control unit and the ABS actuator
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
VDC
Inspection 7 Solenoid Valve, VDC Switch-over Solenoid Valve and Circuit (Cont’d)
BR-144
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