Nissan Terrano r20e. Instruction — part 17
Wiring Diagram — AT — SSV/B
YAT281
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
AT-65
Shift Solenoid Valve B
DESCRIPTION
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response to signals sent from the park/neutral position switch,
vehicle speed and throttle (accelerator) position sensors. Gears will
then be shifted to the optimum position.
Gear position
1
2
3
4
Shift solenoid valve A
ON
OFF
OFF
ON
Shift solenoid valve B
ON
ON
OFF
OFF
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code
Malfunction is detected when ...
Check items
(Possible cause)
:
SHIFT SOLENOID/V B
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
Shift solenoid valve B
:
5th judgement flicker
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
1)
Start engine.
2)
Select “SELF-DIAG RESULTS” mode with CONSULT-II.
3)
Drive vehicle in D
1
,
D
2
,
D
3
position.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ OR ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1)
Start engine.
2)
Drive vehicle in D
1
,
D
2
,
D
3
position.
3)
Perform self-diagnosis.
Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
SAT341H
SAT812H
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
AT-66
DIAGNOSTIC PROCEDURE
CHECK GROUND CIRCUIT.
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly con-
nector in engine compartment.
3. Check resistance between terminal
q
1
and ground.
Resistance: 20 - 40
Ω
OK
E
NG
1. Remove control valve
assembly. Refer to
AT-139.
2. Check the following
items:
I
Shift solenoid valve B
Refer to “COMPONENT
INSPECTION” below.
I
Harness of terminal cord
assembly for short or
open
CHECK POWER SOURCE CIRCUIT.
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check resistance between terminal
q
1
and TCM harness connector terminal
q
12
.
Resistance:
Approximately 0
Ω
If OK, check harness for short to
ground and short to power.
4. Reinstall any part removed.
OK
E
NG
Repair open circuit or short
to ground or short to power
in harness or connector.
Perform “SELF-DIAGNOSIS CODE CON-
FIRMATION PROCEDURE”, AT-66.
OK
E
NG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
COMPONENT INSPECTION
Shift solenoid valve B
I
For removal, refer to AT-139.
Resistance check
I
Check resistance between terminal
q
1
and ground.
Solenoid valve
Terminal No.
Resistance
(Approx.)
Shift solenoid
valve B
q
1
Ground
20 - 40
Ω
Operation check
I
Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal
q
1
and ground.
YAT304
YAT305
YAT306
YAT307
H
H
H
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
Shift Solenoid Valve B (Cont’d)
AT-67
Wiring Diagram — AT — OVRCSV
YAT282
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH S/V
AT-68
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