Infiniti I30 (A33). Manual — part 45
SAT283HB
Description
NHAT0070
Shift solenoid valves A and B are turned ON or OFF” by the TCM
in response to signals sent from the park/neutral position (PNP)
switch, vehicle speed and throttle position sensors. Gears will then
be shifted to the optimum position.
Gear position
1
2
3
4
Shift solenoid valve A
ON (Closed)
OFF (Open)
OFF (Open)
ON (Closed)
Shift solenoid valve B
ON (Closed)
ON (Closed)
OFF (Open)
OFF (Open)
TCM TERMINALS AND REFERENCE VALUE
NHAT0070S01
Remarks: Specification data are reference values.
Terminal
No.
Wire color
Item
Condition
Judgement
standard
(Approx.)
12
LG/B
Shift solenoid
valve B
When shift solenoid valve B operates.
(When driving in D
1
or D
2
.)
Battery volt-
age
When shift solenoid valve B does not oper-
ate.
(When driving in D
3
or D
4
.)
0V
On Board Diagnosis Logic
NHAT0237
Diagnostic trouble code SFT SOL B/CIRC with CONSULT-II or
P0755 without CONSULT-II is detected when TCM detects an
improper voltage drop when it tries to operate the solenoid valve.
Possible Cause
NHAT0239
Check the following items.
I
Harness or connectors
(The solenoid circuit is open or shorted.)
I
Shift solenoid valve B
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0755 SHIFT SOLENOID VALVE B
Description
AT-177
SAT014K
SEF949Y
Diagnostic Trouble Code (DTC) Confirmation
Procedure
NHAT0238
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch OFF and wait at least 5 seconds before
conducting the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
WITH CONSULT-II
NHAT0238S01
1)
Turn ignition switch ON and select “DATA MONITOR” mode for
“ENGINE” with CONSULT-II.
2)
Start engine.
3)
Drive vehicle in D position and allow the transmission to shift
1
,
2
,
3 (“GEAR”).
WITH GST
NHAT0238S02
Follow the procedure “With CONSULT-II”.
DTC P0755 SHIFT SOLENOID VALVE B
Diagnostic Trouble Code (DTC) Confirmation Procedure
AT-178
Wiring Diagram — AT — SSV/B
NHAT0071
MAT816A
SAT309K
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0755 SHIFT SOLENOID VALVE B
Wiring Diagram — AT — SSV/B
AT-179
Diagnostic Procedure
NHAT0072
1
CHECK VALVE RESISTANCE
1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 1 and ground.
SAT633JC
OK or NG
OK
©
GO TO 3.
NG
©
GO TO 2.
2
CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-280.
2. Check the following items:
I
Shift solenoid valve B
I
Operation check
i. Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal and ground.
SAT036K
I
Harness of terminal cord assembly for short or open
OK or NG
OK
©
GO TO 3.
NG
©
Repair or replace damaged parts.
3
CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between sub-harness connector terminal 1 and TCM harness connector terminal 12. Refer to wiring
diagram — AT — SSV/B.
Continuity should exist.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK
©
GO TO 4.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0755 SHIFT SOLENOID VALVE B
Diagnostic Procedure
AT-180
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