Nissan Silvia. Manual — part 99
6
CIRCUIT CHECK
1. Disconnect ABS actuator connector.
2. Check continuity between ABS actuator connectors F14, F40 (actuator side) terminals 11 (−) and 21 (+).
NOTE:
Pay attention to tester polarity.
Specifications may vary depending on the type of tester.
Before performing this inspection, refer to the instruction manual of the tester.
SBR828E
Continuity should exist.
OK or NG
OK
©
GO TO 7.
NG
©
Replace ABS actuator.
7
CONTROL UNIT POWER SUPPLY CIRCUIT
Go to “2 CONTROL UNIT POWER SUPPLY CHECK” in “DIAGNOSTIC PROCEDURE 5”, BR-70.
OK
©
GO TO 8.
NG
©
Repair harness and connectors.
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
6. Warning Lamp Does Not Come On When Ignition Switch Is Turned On (Cont’d)
BR-79
8
ABS ACTUATOR SOLENOID VALVE RELAY CHECK
Check ABS solenoid valve relay.
SBR814E
MTBL0642
OK or NG
OK
©
GO TO “DIAGNOSTIC PROCEDURE 5”, BR-70.
NG
©
Replace ABS actuator.
9
CHECK WARNING LAMP BULB
Go to “2 CONTROL UNIT POWER SUPPLY CHECK” in “DIAGNOSTIC PROCEDURE 5”, BR-70.
OK
©
Repair harness or connection between battery and control unit connector F8 (body side)
terminal 33 (including combination meter).
NG
©
Replace bulb.
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
6. Warning Lamp Does Not Come On When Ignition Switch Is Turned On (Cont’d)
BR-80
7. Warning Lamp Stays On When Ignition
Switch Is Turned On
=NMBR0115
1
INSPECTION START
ABS control unit inspection
SBR824E
©
GO TO 2.
2
CHECK FUSE
Check 10A fuse No. 10. For fuse layout, refer to EL-7, “POWER SUPPLY ROUTING”.
Is fuse OK?
Yes
©
GO TO 3.
No
©
GO TO 12.
3
CHECK HARNESS CONNECTOR
Check ABS control unit pin terminals for damage or bad connection of ABS control unit harness connector. Reconnect
ABS actuator and control unit harness connector. Then retest.
Does warning lamp stay on when ignition switch is turned ON?
Yes
©
GO TO 4.
No
©
INSPECTION END
4
CHECK ABS CONTROL UNIT GROUND CIRCUIT
Refer to “ABS CONTROL UNIT GROUND” in “Ground Circuit Check”, BR-53.
Is ground circuit OK?
Yes
©
GO TO 5.
No
©
Repair harness or connector.
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
7. Warning Lamp Stays On When Ignition Switch Is Turned On
BR-81
5
POWER SUPPLY CHECK
1. Disconnect control unit connector F7.
2. Check voltage between control unit connector F7 (body side) terminal 12 (GY/R) and ground.
SBR823E
Does battery voltage exist when ignition switch is turned “ON”?
Yes
©
GO TO 6.
No
©
Check the following.
I
Harness connector F7
I
Harness for open or short between control unit and fuse
If NG, repair harness or connector.
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
7. Warning Lamp Stays On When Ignition Switch Is Turned On (Cont’d)
BR-82
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