Nissan Silvia. Instruction — part 29
Wiring Diagram — AT — SSV/B
NMAT0229
TAT259
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
Wiring Diagram — AT — SSV/B
AT-113
Diagnostic Procedure
NMAT0230
1
CHECK GROUND CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect solenoid valve harness connector (terminal cord assembly) E25 in engine compartment.
3. Check resistance between solenoid valve harness connector (terminal cord assembly) E25 terminal No. 1 (OR/L) and
ground.
SAT802JA
Is resistance approx. 20 - 40
Ω
?
Yes
©
GO TO 2.
No
©
1. Remove control valve assembly.
Refer to AT-205.
2. Check the following items:
I
Shift solenoid valve B
Refer to “Component Inspection”, AT-115.
I
Harness of terminal cord assembly for short or open
2
CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check resistance between solenoid valve harness connector E25 terminal No. 1 (OR/L) and TCM harness connector
M25 terminal No. 12 (OR/L).
SAT803JA
If OK, check harness for short to ground and short to power.
Is resistance approx. 0
Ω
?
Yes
©
GO TO 3.
No
©
Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
Diagnostic Procedure
AT-114
3
CHECK DTC
Perform Self-diagnosis Code confirmation procedure, AT-112.
OK or NG
OK
©
INSPECTION END
NG
©
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
SAT651IA
Component Inspection
NMAT0231
SHIFT SOLENOID VALVE B
NMAT0231S01
I
For removal, refer to AT-205.
Resistance Check
NMAT0231S0101
I
Check resistance.
Terminal
Connector
Terminal No. (Wire color)
Resistance
(Approx.)
Ω
E403
2 (W)
Ground
20 - 40
SAT650IA
Operation Check
NMAT0231S0102
I
Check solenoid valve by listening for its operating sound while
applying battery voltage to the solenoid valve harness connec-
tor (terminal cord assembly) E403 terminal No. 2 (W) and
ground.
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
Diagnostic Procedure (Cont’d)
AT-115
SAT341H
Description
NMAT0232
The overrun clutch solenoid valve is activated by the TCM in
response to signals sent from the PNP switch, overdrive control
switch, vehicle speed and throttle position sensors. The overrun
clutch operation will then be controlled.
TCM TERMINALS AND REFERENCE VALUE
NMAT0232S01
Remarks: Specification data are reference values.
Terminal
No.
Wire color
Item
Condition
Judgement
standard
(Approx.)
20
P/L
Overrun clutch
solenoid valve
When overrun clutch solenoid valve oper-
ates.
Battery voltage
When overrun clutch solenoid valve does not
operate.
0V
ON BOARD DIAGNOSIS LOGIC
NMAT0232S02
Diagnostic trouble code
Malfunction is detected when ...
Check item (Possible cause)
: OVERRUN CLUTCH S/V
TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.
I
Harness or connectors
(The solenoid circuit is open or shorted.)
I
Overrun clutch solenoid valve
: 6th judgement flicker
SAT014K
SAT815H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
NMAT0232S04
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
WITH CONSULT-II
NMAT0232S05
1)
Start engine.
2)
Select “SELF-DIAG RESULTS” mode for “A/T” with CON-
SULT-II.
3)
Drive vehicle under the following conditions:
Selector lever in “D” position, overdrive control switch in “OFF”
position and vehicle speed higher than 10 km/h (6 MPH).
WITHOUT CONSULT-II
NMAT0232S06
1)
Start engine.
2)
Drive vehicle under the following conditions:
Selector lever in “D” position, overdrive control switch in “OFF”
position and vehicle speed higher than 10 km/h (6 MPH).
3)
Perform self-diagnosis.
Refer
to
SELF-DIAGNOSTIC
PROCEDURE
(Without
CONSULT-II), AT-37.
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH S/V
Description
AT-116
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