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-II Reference Value
On Board Diagnosis Logic
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code P1705 TP SEN/CIRC A/T with CONSULT-II or 15th judgement flicker without CONSULT-II 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-II
Turn ignition switch ON. (Do not start engine.)
Select DATA MONITOR mode for A/T with CONSULT-II.
Start engine and let it idle for 1 second.
If DTC is detected, go to AT-128, Diagnostic Procedure.
Diagnostic Procedure
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT-87, SELF-DIAGNOSTIC RESULT MODE. See: Powertrain Management Transmission Control Systems Testing and Inspection Reading and Clearing Diagnostic Trouble Codes Reading Diagnostic Trouble Codes With Manufacturer's Scan Tool
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to DTC U1000 CAN COMMUNICATION LINE.
NO >> GO TO 2.
2. CHECK DTC WITH TCM
With CONSULT-II
Turn ignition switch ON. (Do not start engine.)
Select ECU INPUT SIGNALS in DATA MONITOR mode for A/T with CONSULT-II.
Depress accelerator pedal and read out the value of ACCELE POSI.
Select SELF-DIAG RESULTS mode for A/T with CONSULT-II. Refer to SELF-DIAGNOSTIC RESULT MODE. OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK DTC WITH ECM
With CONSULT-II
Turn ignition switch ON. (Do not start engine.)
Select SELF-DIAG RESULTS mode for ENGINE with CONSULT-II. Refer to CONSULT-II Function (ENGINE). OK or NG
OK >> GO TO 4.
NG >> Check the DTC detected item. Refer to CONSULT-II Function (ENGINE).
If CAN communication line is detected, go to AT-100, DTC U1000 CAN COMMUNICATION LINE. See: U Code Charts U1000
4. CHECK DTC
Perform DTC Confirmation Procedure.
Refer to AT-127, 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 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. Refer to Control Valve With TCM and A/T Fluid Temperature Sensor 2.
NG >> Repair or replace damaged parts.
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Thursday, April 11th, 2013 AT 10:18 AM