2007 NISSAN 350Z ECU

BRC-122
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
2. CHECK CONNECTOR
1. Disconnect brake fluid level switch connector and VDC/TCS/ABS control unit connector and check termi-
nal for deformation, disconnection, looseness, and so on. If there is any non-standard condition, repair or
replace the terminal.
2. Securely reconnect the connectors and then perform self-diagnosis.
Is the result of self-diagnosis normal?
YES >> The connector terminal contact is loose, damaged, open or shorted.
NO >> GO TO 3.
3. CHECK HARNESS BETWEEN THE BRAKE FLUID LEVEL SWITCH AND THE VDC/TCS/ABS CON-
TROL UNIT
1. Turn ignition switch OFF and disconnect brake fluid level switch
connector, VDC/TCS/ABS control unit, connectors.
2. Check continuity between brake fluid level switch connector E44
and VDC/TCS/ABS control unit connector B114.
OK or NG
OK >> Connect connectors and conduct a VDC/TCS/ABS con-
trol unit self-diagnosis.
NG >> If the open or short in harness, repair or replace the harness.
CAN Communication SystemNFS0004Q
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the VDC/TCS/ABS control unit connector, and check the terminal for
deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace the terminal.
2. Reconnect connector to perform self-diagnosis.
Is
“CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Print out the self-diagnostic results, and refer to LAN-48, "CAN System Specification Chart" .
NO >> Connector terminal connection is loose, damaged, open, or shorted.
Component InspectionNFS0004R
VDC OFF SWITCH

Turn ignition switch OFF, and disconnect the VDC OFF switch
connector M9, and check the continuity between terminals 1 and
2.
VDC/TCS/ABS control unit Brake fluid level switch Continuity
401Yes
Ground No
Ground 2 Yes
SFIA1898E
1 - 2 :Continuity should exist when pushing the
switch.
continuity should not exist when releasing
the switch.
SFIA1899E

BRC-126
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
Vehicle Jerks During VDC/TCS/ABS ControlNFS0004X
1. CHECK ENGINE SPEED SIGNAL
Conduct CONSULT-III VDC/TCS/ABS control unit “Data Monitor”.
Is engine speed at idle 400 rpm or higher?
YES >> GO TO 3.
NO >> GO TO 2.
2. CHECK ECM SELF-DIAGNOSIS RESULT ITEM
Perform ECM self-diagnosis.
Are self-diagnosis items displayed?
YES >> Check the corresponding items. Refer to EC-81, "TROUBLE DIAGNOSIS" in “Engine Control
(EC section)”.
NO >> GO TO 3.
3. SYMPTOM CHECK 1
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.
4. CHECK A/T SELF-DIAGNOSIS RESULTS ITEM
Perform A/T self-diagnosis.
OK or NG
OK >> GO TO 5.
NG >> Check the corresponding items. Refer to AT- 4 0 , "
TROUBLE DIAGNOSIS" in “A/T”.
5. SYMPTOM CHECK 2
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK SELF-DIAGNOSIS RESULT ITEM 1
Conduct self-diagnosis of the VDC/TCS/ABS control unit.
Are self-diagnosis items displayed?
YES >> Check the corresponding items, make repairs, and re-conduct the VDC/TCS/ABS control unit self-
diagnosis.
NO >> GO TO 7.
7. CHECK CONNECTOR
1. Disconnect the VDC/TCS/ABS control unit and the ECM connectors, check the terminals for deformation,
disconnection, looseness, and so on. If there is an error, repair or replace the connector.
2. Securely reconnect the connector and conduct self-diagnosis.
OK or NG
OK >> If the connector terminal contact is loose, damaged, open or shorted, repair or replace the con-
nector terminal.
NG >> GO TO 8.

VDC/TCS/ABS ACTUATOR
BRC-131
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
VDC/TCS/ABS ACTUATORPFP:47660
Removal and InstallationNFS00051
COMPONENTS
Pay attention to the following when removing actuator.
CAUTION:

Before servicing, disconnect battery cables.

To remove brake tube, use flare nut wrench to prevent flare nuts and brake tube from being dam-
aged. To install, use flare nut wrench (commercial service tool).

Do not remove and install actuator by holding harness.

After work is completed, bleed air from brake piping. Refer to BR-11, "Bleeding Brake System" .

Be sure to securely connect the ground cable.
SFIA0971E