P1705

DTC P1705 THROTTLE POSITION SENSOR

Description
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.

CONSULT-III Reference Value in Data Monitor Mode:

On Board Diagnosis Logic
- This is not an OBD-II self-diagnostic item.
- Diagnostic trouble code "P1705 TP SEN/CIRC A/T" with CONSULT-III or 15th judgement flicker without CONSULT-III is detected when TCM does not receive the proper accelerator pedal position signals (input by CAN communication) from ECM.

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-III
1. Turn ignition switch "ON". (Do not start engine.)
2. Select "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
3. Start engine and let it idle for 1 second.
4. If DTC is detected, go to "Diagnostic Procedure" below.

Diagnostic Procedure

1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to TM-35, "CONSULT-III Function (TRANSMISSION)". Consult-III Function (Transmission)
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to TM-45. U1000
NO >> GO TO 2.

2. CHECK DTC WITH TCM

With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
3. Depress accelerator pedal and read out the value of "ACCELE POSI".
4. Select "SELF-DIAG RESULTS" mode for "TRANSMISSION" with CONSULT-III, Refer to TM-35, "CONSULT-III Function (TRANSMISSION)". Consult-III Function (Transmission)
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

3. CHECK DTC WITH ECM

With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "ENGINE" with CONSULT-III. Refer to EC-74, "CONSULT-III Function (ENGINE)" (VQ40DE) or EC-542, "CONSULT-III Function (ENGINE)" (VK56DE).

CONSULT-III Function (Engine)
OK or NG
OK >> GO TO 4.
NG >> Check the DTC detected item. Refer to EC-74, "CONSULT-III Function (ENGINE)" (VQ40DE) or EC-542, "CONSULT-III Function (ENGINE)" (VK56DE).
CONSULT-III Function (Engine)
^ If CAN communication line is detected, go to TM-45, "Diagnostic Procedure". U1000

4. CHECK DTC
Perform "DTC Confirmation Procedure".
- Refer to "DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.

5. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to TM-101, "Diagnostic Procedure". Main Power Supply and Ground Circuit
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. DETECT MALFUNCTIONING ITEM
Check the following.
- The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the control valve with TCM.
NG >> Repair or replace damaged parts.