Nissan Silvia. Instruction — part 96
8
MOTOR RELAY CHECK
Check motor relay.
SBR814E
MTBL0644
OK or NG
OK
©
GO TO 9.
NG
©
Replace ABS actuator.
9
MOTOR CHECK
1. Disconnect ABS actuator connector.
2. Apply battery voltage to 8-pin connector terminal 4 (actuator side) and ground.
Do not apply battery voltage more than 5 seconds.
SBR822E
Does motor operate?
Yes
©
GO TO “DIAGNOSTIC PROCEDURE 5”, BR-70.
No
©
Replace ABS actuator.
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
ABS
Motor Relay or Motor (Cont’d)
BR-67
10
FUSIBLE LINK CHECK
Replace fusible link.
Does the fusible link blow out when ignition switch is turned “ON”?
Yes
©
GO TO 11.
No
©
INSPECTION END
11
MOTOR POWER SUPPLY CIRCUIT
1. Disconnect battery cable ABS actuator 2-pin connector F39.
2. Check continuity between ABS actuator 2-pin connector F39 (body side) terminal 10 (G) and ground.
SBR819E
Continuity should not exist.
OK or NG
OK
©
GO TO 12.
NG
©
Check the following.
I
Harness connector F39
I
Harness for open or short between ABS actuator connector and fusible link
If NG, repair harness or connector.
12
RELAY POWER SUPPLY CIRCUIT
1. Disconnect ABS actuator connector and control unit connector.
2. Check continuity between ABS actuator 8-pin connector F40 (body side) terminal 4 (L) and ground.
SBR820E
Continuity should not exist.
OK or NG
OK
©
GO TO 13.
NG
©
Check the following.
I
Harness connector F40
I
Harness for open or short between ABS actuator connector (body side) and ABS con-
trol unit
If NG, repair harness or connector.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
ABS
Motor Relay or Motor (Cont’d)
BR-68
13
RELAY POWER SUPPLY CIRCUIT
Check continuity between ABS 8-pin connector F40 (ABS actuator side) terminal 4 and ground, 2-pin connector F39 (ABS
actuator side) terminal 10 and ground.
SBR821E
Continuity should not exist.
OK or NG
OK
©
GO TO 14.
NG
©
Replace ABS actuator.
14
MOTOR CHECK
Go to “9 MOTOR CHECK” in “DIAGNOSTIC PROCEDURE 4”, BR-64.
©
Check ABS control unit pin terminals for damage or the connection of ABS control unit
harness connector.
Reconnect ABS control unit harness connector then retest.
15
FUSE CHECK
Replace fuse.
Does the fuse blow out when ignition switch is turned “ON”?
Yes
©
Check the following.
I
Harness connector F40
I
Harness for open or short between ABS actuator connector and fuse
If NG, repair harness or connector.
No
©
INSPECTION END
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
ABS
Motor Relay or Motor (Cont’d)
BR-69
Low Voltage
DIAGNOSTIC PROCEDURE 5
=NMBR0107
1
INSPECTION START
ABS control unit power supply and ground circuit inspection
SBR839E
©
GO TO 2.
2
CONTROL UNIT 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 3.
No
©
GO TO 4.
3
CONTROL UNIT GROUND CHECK
Refer to CONTROL UNIT GROUND in Ground Circuit Check, BR-53.
Does the fusible link blow out when ignition switch is turned “ON”?
Yes
©
Check control unit pin terminals for damage or the connection of control unit harness
connector.
Reconnect control unit harness connector.
Then retest.
No
©
Repair harness and connectors.
4
FUSE CHECK
Check fuse 10A No. 10. Refer to “POWER SUPPLY ROUTING”, EL-7.
OK
©
GO TO 5.
NG
©
Replace fuse.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
ABS
Low Voltage
BR-70
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