Infiniti G20 (P11). Manual — part 31
Wiring Diagram — AT — VSSA/T
NCAT0201
TAT225
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
Wiring Diagram — AT — VSSA/T
AT-121
Diagnostic Procedure
NCAT0039
1
CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
SAT014K
3. Read out the value of “VHCL/S SE·A/T” while driving.
Check the value changes according to driving speed.
SAT614J
OK or NG
OK
©
GO TO 4.
NG
©
GO TO 3.
2
CHECK REVOLUTION SENSOR (With CONSULT-II)
With CONSULT-II
Start engine.
MTBL0578
Harness for short open between TCM, ECM and revolution sensor (Main harness)
OK or NG
OK
©
GO TO 3.
NG
©
Repair or replace damaged parts.
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
Diagnostic Procedure
AT-122
3
CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-120.
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 4.
4
CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK
©
INSPECTION END
NG
©
Repair or replace damaged parts.
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
Diagnostic Procedure (Cont’d)
AT-123
Description
NCAT0041
The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUE
NCAT0041S01
Remarks: Specification data are reference values.
Terminal
No.
Wire color
Item
Condition
Judgement stan-
dard
(Approx.)
39
L
Engine speed
signal
Refer to EC-134, “ECM
INSPECTION TABLE”.
—
ON BOARD DIAGNOSIS LOGIC
NCAT0041S02
Diagnostic trouble code
Malfunction is detected when ...
Check item (Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper voltage
signal from ECM.
I
Harness or connectors
(The sensor circuit is open or shorted.)
: P0725
SAT014K
SEF949Y
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NCAT0041S03
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” 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
1)
Turn ignition switch “ON” and select “DATA MONITOR” mode
for “ENGINE” with CONSULT-II.
2)
Start engine and maintain the following conditions for at least
10 consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD “ON”)
With GST
Follow the procedure “With CONSULT-II”.
DTC P0725 ENGINE SPEED SIGNAL
Description
AT-124
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст