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DTC P0705: Malfunction of Transmission Range Switch
 
 
 
 
DIAGNOSTIC FUNCTION
TCM monitors the signal from the transmission range switch, and determines if the abnormal input is present or not.
 
 
DESCRIPTIONS OF MONITOR METHODS
  • TCM does not detects the transmission range switch input signal for 10 seconds when the vehicle speed is 3 km/h (2 mph) or more.
  • TCM detects the multiple inputs from the transmission range switch for two seconds.
 
 
MONITOR EXECUTION
  • Vehicle speed (no-transmission range switch signal input): 3 km/h (2 mph) or more for 10 seconds continuously
  • Vehicle speed (transmission range switch signal multiple input): No conditions
 
 
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
  • P0720: Malfunction of output speed sensor
Sensor (The sensor below is determined to be normal)
  • Output speed sensor
 
 
LOGIC FLOW CHARTS (Monitor Sequence-Input Other Rationality)
 
 
LOGIC FLOW CHARTS (Monitor Sequence-Input Open Circuit)
 
 
DTC SET CONDITIONS
Check Conditions
  • Voltage of battery: 10 volts or more
  • Voltage of battery: 16.5 volts or less
Judgment Criteria
  • TCM does not detects the transmission range switch input signal for 10 seconds when the vehicle speed is 3 km/h (2 mph) or more.
  • TCM detects the multiple inputs from the transmission range switch for two seconds.
 
 
OBD-II DRIVE CYCLE PATTERN
The vehicle is driven for at least 20 seconds at the speed of 10 km/h (6.2 mph) or more.
 
 
PROBABLE CAUSES
  • Malfunction of the transmission range switch
  • Improper adjustment of transaxle control cable
  • Damaged wiring harness and connectors
  • Malfunction of TCM
 
 
DIAGNOSIS
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicles Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
STEP 1. Check the following connector.
  • Transmission range switch connector
  • TCM connector
Check the terminals for a contact status problem and internal short circuit.
Is the check result normal?
Go to Step 2.
Repair the faulty connector(s).
 
STEP 2. Check for open circuit in INHP, INHR, INHN, INHD and INHL line between the transmission range switch connector and the TCM connector.
Is the check result normal?
Go to Step 3.
Repair the wiring harness.
 
STEP 3. Transmission range switch and control cable adjustment.
Refer to .
Is the check result normal?
Go to Step 4.
Adjust the transmission range switch and the control cable (Refer to ).
 
STEP 4. Transmission range switch continuity check.
Refer to .
Is the check result normal?
Go to Step 5.
Replace the transmission range switch (Refer to GROUP 23B, Transaxle ).
 
STEP 5. Voltage measurement at TCM connector (INHP, INHR, INHN, INHD and INHL terminal).
(1) Connect the transmission range switch connector.
(2) Disconnect the TCM connector, and measure at the wiring harness side.
(3) Turn the ignition switch to the "ON" position.
(4) Measure the voltage at each terminal when the selector lever is moved to each range.
  • At "P" range: Between the TCM connector (INHP terminal) and body ground
  • At "R" range: Between the TCM connector (INHR terminal) and body ground
  • At "N" range: Between the TCM connector (INHN terminal) and body ground
  • At "D" range: Between the TCM connector (INHD terminal) and body ground
  • At "L" range: Between the TCM connector (INHL terminal) and body ground
OK: 10 volts or more
Is the check result normal?
Go to Step 6.
  • Repair the connector(s) or the wiring harness.
 
STEP 6. Using scan tool (M.U.T.-III), recheck the DTC.
Check again if the DTC is stored.
(1) Erase the DTC.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Carry out a test drive with the OBD-II drive cycle pattern.
(4) Recheck the DTC.
Is DTC P0705 stored?
Replace the TCM (Refer to ).
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).