Infiniti I35 (A33). Manual — part 48
On Board Diagnosis Logic
=NHAT0240
Diagnostic trouble code TP SEN/CIRC A/T with CONSULT-II or
P1705 without CONSULT-II is detected when TCM receives an
excessively low or high voltage from the sensor.
Possible Cause
NHAT0241
Check the following items.
I
Harness or connectors
(The sensor circuit is open or shorted.)
I
Accelerator pedal position sensor
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1705 ACCELERATOR PEDAL POSITION SENSOR (THROTTLE
POSITION SENSOR)
On Board Diagnosis Logic
AT-189
SAT014K
Diagnostic Trouble Code (DTC) Confirmation
Procedure
NHAT0242
SAT860K
SAT014K
SEF949Y
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 10 seconds before
conducting the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
WITH CONSULT-II
NHAT0242S01
1)
Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
Accelerator pedal condition
Accelerator pedal position sensor
(THRTL POS SEN)
Fully released
Approx. 0.5V
Partially depressed
0.5 - 4V
Fully depressed
Approx. 4V
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-192.
If the check result is OK, go to following step.
2)
Turn ignition switch ON and select “DATA MONITOR” mode for
“ENGINE” with CONSULT-II.
3)
Start engine and maintain the following conditions for at least
3 consecutive seconds. Then release accelerator pedal com-
pletely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN (accelerator pedal position sensor):
Approximately 3V or less
Selector lever: D position
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-192.
If the check result is OK, go to following step.
4)
Maintain the following conditions for at least 3 consecutive
seconds. Then release accelerator pedal completely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
Accelerator pedal: Wide open throttle
Selector lever: D position
WITH GST
NHAT0242S02
Follow the procedure “With CONSULT-II”.
DTC P1705 ACCELERATOR PEDAL POSITION SENSOR (THROTTLE
POSITION SENSOR)
Diagnostic Trouble Code (DTC) Confirmation Procedure
AT-190
Wiring Diagram — AT — TPS
NHAT0074
MAT485B
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1705 ACCELERATOR PEDAL POSITION SENSOR (THROTTLE
POSITION SENSOR)
Wiring Diagram — AT — TPS
AT-191
Diagnostic Procedure
NHAT0075
1
CHECK DTC WITH ECM
I
Check DTC with CONSULT-II “ENGINE”.
Turn ignition switch ON and select “SELF DIAGNOSTIC RESULTS” mode for “ENGINE” with CONSULT-II.
Refer to EC-90, “Malfunction Indicator Lamp (MIL)”.
OK or NG
OK (with CONSULT-II)
©
GO TO 2.
OK (without CONSULT-
II)
©
GO TO 3.
NG
©
Check accelerator pedal position sensor circuit for engine control. Refer to EC-650,
EC-657, EC-670, “DTC P2122, P2123, P2127, P2128, P2138 APP SENSOR”.
2
CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ON position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “THRTL POS SEN”.
Voltage:
Fully-closed throttle:
Approximately 0.5V
Fully-open throttle:
Approximately 4V
SAT614J
OK or NG
OK
©
GO TO 4.
NG
©
Check harness for short or open between ECM and TCM regarding accelerator pedal
position sensor circuit.
DTC P1705 ACCELERATOR PEDAL POSITION SENSOR (THROTTLE
POSITION SENSOR)
Diagnostic Procedure
AT-192
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