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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)
  • Not applicable
Sensor (The sensor below is determined to be normal)
  • Not applicable
 
 
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: Not change. (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
 
 
DIAGNOSIS
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
Use scan tool MB991958 to perform the CAN bus diagnosis.
Is the check result normal?
Go to Step 2.
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting, Diagnostic Trouble Code Chart ).
 
STEP 2. M.U.T.-III diagnostic trouble code
Check if the engine-related diagnostic trouble code is stored.
Is diagnostic trouble code stored?
Diagnose the engine control system.
Go to Step 3.
 
STEP 3. Symptom recheck after erasing diagnostic trouble code
Is the check result normal?
Intermittent malfunction
Replace TCM.