Infiniti I30 (A33). Manual — part 135
6
CHECK MOTOR RELAY
MTBL0088
While applying battery voltage to relay terminals, insert fuse into the circuit.
SBR776D
Is motor relay OK?
Yes
©
GO TO 7.
No
©
Replace motor relay.
7
CHECK ACTUATOR MOTOR GROUND CIRCUIT
Refer to ACTUATOR MOTOR GROUND in Ground Circuit Check, BR-104.
Is ground circuit OK?
Yes
©
GO TO 8.
No
©
Check the following.
I
Harness connector E29
I
Harness for open or short between solenoid valve relay terminal (relay box side) and
ground
If NG, repair harness or connectors.
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Motor Relay or Motor (Cont’d)
BR-123
8
CHECK ABS ACTUATOR CIRCUIT
Check continuity between ABS actuator 2-pin connector E5 (ABS actuator side) terminal 21 and actuator motor ground
terminal.
SBR793DF
Does continuity exist?
Yes
©
GO TO 9.
No
©
Check the following.
I
Harness connector E5
I
Harness for open or short between actuator connector and motor terminal
If NG, repair harness or connectors.
9
CHECK MOTOR
1. Remove motor relay.
2. Connect actuator connectors.
3. Connect suitable wire between motor relay connector terminals 3 and 5.
Do not connect wire for more than 5 seconds.
SBR773DI
Does motor operate?
Yes
©
Go to “Low Voltage”, BR-126.
No
©
Replace ABS actuator.
10
REPLACE FUSIBLE LINK
Replace fusible link.
Does the fusible link blow out when ignition switch is turned “ON”?
Yes
©
GO TO 11.
No
©
INSPECTION END
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Motor Relay or Motor (Cont’d)
BR-124
11
CHECK MOTOR POWER SUPPLY CIRCUIT
1. Remove motor relay.
2. Check continuity between motor relay terminal 5 and ground.
SBR774DI
Does continuity exist?
Yes
©
GO TO 12.
No
©
Check the following.
I
Harness connector E29
I
Harness for open or short between motor relay terminal (relay box side) and fusible
link
If NG, repair harness or connectors.
12
CHECK ABS MOTOR RELAY
1. Disconnect control unit connector.
2. Check continuity between motor relay terminal 3 and ground.
SBR775DJ
Does continuity exist?
Yes
©
Check the following.
I
Harness connector E29
I
Harness for open or short between motor relay terminal (relay box side) and fusible
link
If NG, repair harness or connectors.
No
©
GO TO 13.
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Motor Relay or Motor (Cont’d)
BR-125
13
CHECK ABS MOTOR POWER SUPPLY CIRCUIT
1. Remove motor ground.
2. Check continuity between ABS actuator 2-pin connector E5 (ABS actuator side) terminal 21 and ground.
SBR489DH
Does continuity exist?
Yes
©
Replace ABS actuator.
No
©
GO TO 14.
14
CHECK MOTOR
Go to “9. CHECK MOTOR” in “Motor Relay or Motor” (preceding page).
Does motor operate?
Yes
©
Check control unit pin terminals for damage or the connection of control unit harness
connector. Reconnect control unit harness connector. Then retest.
No
©
Replace ABS actuator.
Low Voltage
NHBR0067
DIAGNOSTIC PROCEDURE
NHBR0067S01
Malfunction code No. 57
1
INSPECTION START
ABS control unit power supply and ground circuit inspection
SBR337EB
©
GO TO 2.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Motor Relay or Motor (Cont’d)
BR-126
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