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DTC P0705: Transmission Range Switch System
 
 
 
 
DESCRIPTIONS OF MONITOR METHODS
  • The TCM receives no input signal from the transmission range switch.
  • The TCM receives multiple input signals simultaneously from the transmission range switch.
 
 
MONITOR EXECUTION
  • Continuous
 
 
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
  • P0712, P0713: Transmission fluid temperature sensor system
  • P0731: 1st gear incorrect ratio
  • P0732: 2nd gear incorrect ratio
  • P0733: 3rd gear incorrect ratio
  • P0734: 4th gear incorrect ratio
  • P0735: 5th gear incorrect ratio
  • P0729: 6th gear incorrect ratio
  • P0736: Reverse gear incorrect ratio
  • P0742: Torque converter clutch system (Stuck on)
  • P0846: 2-6 brake pressure switch system
  • P0876: High clutch pressure switch system
  • P0988: Low-reverse brake pressure switch system
Sensor (The sensor below is determined to be normal)
  • Transmission fluid temperature sensor
 
 
LOGIC FLOW CHARTS (Monitor Sequence-Input Other Rationality)
 
 
LOGIC FLOW CHARTS (Monitor Sequence-Input Open Circuit)
 
 
DTC SET CONDITIONS
Check Conditions
  • Transmission relay voltage: 2 volts or more.
Judgment Criteria
  • Transmission range switch: multiple signal. (2 seconds)
  • Transmission range switch: no signal detected. (10 seconds)
 
 
OBD-II DRIVE CYCLE PATTERN
Start the engine, keep the vehicle stopped in "P," "R," "N," "D" ranges respectively for more than one minute, and turn "LOCK" (OFF) the ignition switch. Then restart the engine, and stop the vehicle in "P," "R," "N," "D" ranges respectively for more than one minute.
 
 
PROBABLE CAUSES
  • Malfunction of the transmission range switch system circuit
  • Damaged harness or connector
  • Improper installation angle of transmission range switch
  • Malfunction of the transmission range switch
  • Malfunction of the TCM

 
 
DIAGNOSIS
STEP 1. Check the TCM terminal voltage.
[TCM connector (harness side, connected)]
Turn ON the ignition switch, and check by shifting to each range.
  • "P" range: INHP terminal to body ground → Battery positive voltage
  • "R" range: INHR terminal to body ground → Battery positive voltage
  • "N" range: INHN terminal to body ground → Battery positive voltage
  • "D" range: INHD terminal to body ground → Battery positive voltage
  • "L" range: INHL terminal to body ground → Battery positive voltage
Is the check result normal?
Go to Step 6.
Go to Step 2.
 
STEP 2. Check the path between the battery and the transmission range switch.
Turn OFF the ignition switch, and check the following items.
  • Open/short circuit of power supply line between the battery and transmission range switch connector.
  • Blown fuse
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
 
STEP 3. Check for continuity in INHP, INHR, INHN, INHD, INHL line between the transmission range switch connector and the TCM connector.
When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Check the transmission range switch as a single unit.
Refer to .
Is the check result normal?
Go to Step 5.
Go to Step 7.
 
STEP 5. Check the TCM connector pin terminal and the connection status.
Is there a failure point?
Repair or replace the failure section.
Replace the TCM.
 
STEP 6. Erase the DTC, and drive the vehicle for a while.
Check that the normal code is displayed.
Is the check result normal?
The procedure is complete.
Replace the TCM.
 
STEP 7. Adjust the transmission range switch.
Refer to .
After adjustment, check the continuity between the terminals again.
Is the check result normal?
Go to Step 8.
Replace the transmission range switch.
 
STEP 8. Erase the DTC, and drive the vehicle for a while.
Check that the normal code is displayed.
Is the check result normal?
The procedure is complete.
Return to Step 1.