P1705
DTC P1705 THROTTLE POSITION SENSORDescription
Electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle position sensor, etc. The actuator sends a signal to the ECM, and ECM sends signals to TCM with CAN communication.
On Board Diagnosis Logic
^ This is an OBD-II self-diagnostic item.
^ Diagnostic trouble code "TP SEN/CIRC A/T" with CONSULT-II or P1705* without CONSULT-II is detected when TCM does not receive the proper accelerator pedal position signals (input by CAN communication) from ECM.
*: For VQ35DE engine.
Possible Cause
Harness or connectors
(The sensor circuit is open or shorted.)
DTC Confirmation Procedure
NOTE: If "DTC Confirmation Procedure" has been previously performed, always turn ignition switch "OFF" and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch "ON". (Do not start engine.)
2. Select "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Start engine and let it idle for 1 second.
4. If DTC is detected, go to "Diagnostic Procedure".
WITH GST
Follow the procedure "With CONSULT-II".
Diagnostic Procedure
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Is a malfunction in the CAN communication indicated in the results.
Yes or No
Yes >> Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE". Transmission Control Systems
No >> GO TO 2.
2. CHECK DTC WITH ECM
With CONSULT-II
1. Turn ignition switch "ON". (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "ENGINE" with CONSULT-II. Refer to "CONSULT-II Function" (for VQ35DE) or "CONSULT-II Function" (for VK45DE). Scan Tool Testing and Procedures
With GST
Follow the procedure "With CONSULT-II".
OK or NG
OK >> GO TO 3.
NG >> Check the DTC detected item. Refer to "CONSULT-II Function" (for VQ35DE) or "CONSULT-II Function" (for VK45DE).
^ If CAN communication line is detected, go to "DTC U1000 CAN COMMUNICATION LINE".
3. CHECK DTC WITH TCM
With CONSULT-II
1. Turn ignition switch "ON". (Do not start engine.)
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Depress accelerator pedal and read out the value of "ACCLE POS" and "THROTTLE POSI".
Check engine speed changes according to throttle position.
4. Select "SELF-DIAG RESULTS" mode for "ENGINE" with CONSULT-II. Refer to "SELF-DIAG RESULTS MODE" (for VQ35DE) or "SELF-DIAG RESULTS MODE" (for VK45DE).
With GST
Follow the procedure "With CONSULT-II".
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK DTC
Perform DTC Confirmation Procedure.
OK or NG
OK >> INSPECTION END
NG >> Replace the transmission assembly.