Infiniti QX4 (R50). Manual - part 45
ON BOARD DIAGNOSIS LOGIC
NBAT0066S04
Diagnostic trouble code
Malfunction is detected when ...
Check item (Possible cause)
: TP SEN/CIRC A/T
TCM receives an excessively low or high
voltage from the sensor.
I
Harness or connectors
(The solenoid circuit is open or shorted.)
I
Throttle position sensor
I
Throttle position switch
: P1705
SAT014K
SAT971J
SAT014K
SAT020K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NBAT0066S01
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 “A/T” with CONSULT-II.
2)
Apply vacuum to the throttle opener, then check the following.
Refer to steps 1 and 2 of “Preparation”, “TCM SELF-DIAG-
NOSTIC PROCEDURE (No Tools)”, AT-46.
Accelerator pedal
condition
THRTL POS SEN
CLOSED THL/SW
W/O THRL/P·SW
Fully released
Less than 4.7V
ON
OFF
Partially
depressed
0.1 - 4.6V
OFF
OFF
Fully depressed
More than
1.9 - 4.6V
OFF
ON
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-180.
If the check result is OK, go to following step.
3)
Turn ignition switch “ON” and select “DATA MONITOR” mode
for “ENGINE” with CONSULT-II.
4)
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: Approximately 3V or less
Selector lever: D position (OD “ON”)
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-180.
If the check result is OK, go to following step.
5)
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 (OD “ON”)
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1705 THROTTLE POSITION SENSOR
Description (Cont’d)
AT-177