P1706

DTC P1706: Malfunction of Throttle Signal

DIAGNOSTIC FUNCTION

TCM detects the abnormality in the throttle position signal sent from the ECM.

DESCRIPTIONS OF MONITOR METHODS

- The difference between the throttle position signal received from the ECM and the corresponding turnover value is 1.37 V or more, and this status continues for 1 second.

MONITOR EXECUTION

- Transmission range:D

MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)

- P0705: Malfunction of transmission range switch
- P0715: Malfunction of primary pulley speed sensor
- P0720: Malfunction of secondary pulley speed sensor
- P0725: Malfunction of engine speed
- P0741: Abnormality in lockup function
- P0746: Abnormality in hydraulic control system function
- P0841: Abnormality in line pressure sensor function
Sensor (The sensor below is determined to be normal)

- Transmission range switch
- Primary pulley speed sensor
- Secondary pulley speed sensor

LOGIC FLOW CHARTS (Monitor Sequence)





DTC SET CONDITIONS

Check Conditions

- Transmission range switch position: D.
- Voltage of battery: 9 volts or more.
- Voltage of battery: 16 volts or less.
Judgment Criteria

- Throttle position toggle signal on CAN: fail. (1 second)

OBD-II DRIVE CYCLE PATTERN

Ignition switch : ON (start the engine and keep it for 10 seconds or more)

PROBABLE CAUSES

- Malfunction of the CAN bus
- Malfunction of engine system
- Malfunction of TCM

DIAGNOSTIC PROCEDURE

STEP 1. Using scan tool MB991958, diagnose the CAN bus line.

Use scan tool MB991958 to perform the CAN bus diagnosis.

Q. Is the check result normal?

YES Go to Step 2.
NO Repair the CAN bus lines CAN Bus Diagnostics Chart).
STEP 2. M.U.T.-III diagnostic trouble code

Check if the engine-related diagnostic trouble code is set.

Q. Is diagnostic trouble code set?

YES Diagnose the engine control system.
NO Go to Step 3.
STEP 3. Symptom recheck after erasing diagnostic trouble code

Q. Is the check result normal?

YES Intermittent malfunction
NO Replace TCM.