P0705
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 inhibitor switch input signal for 5 seconds when the vehicle speed is 1 km/h (0.6 mph) or more for 10 seconds continuously.
- TCM detects the multiple inputs from the transmission range switch for 2 seconds.
MONITOR EXECUTION
- Vehicle speed (no-transmission range switch signal input):1km/h (0.6 mph) or more for 10 seconds continuously
- Vehicle speed (transmission range switch signal multiple input) : No conditions
- Throttle valve opening : 1/8 or more
- Engine speed : 450 r/min or more
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
- 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
- P1706: Malfunction of throttle signal
Sensor (The sensor below is determined to be normal)
- Primary pulley speed sensor
- Secondary pulley speed sensor
- Accelerator pedal position sensor
LOGIC FLOW CHARTS (Monitor Sequence)
DTC SET CONDITIONS
Check Conditions
- Vehicle speed over 1 km/h (0.6 mph): 10 seconds or more.
- Throttle position sensor voltage: 1.37 volts or more.
- Engine speed: 450 r/min or more.
- Voltage of battery: 9 volts or more.
- Voltage of battery: 16 volts or less.
Judgment Criteria
- Transmission range switch: multiple signal. (2 seconds)
- Transmission range switch: no signal. (5 seconds)
OBD-II DRIVE CYCLE PATTERN
transmission range: D (Drive the vehicle for 10 seconds or more while the accelerator opening angle is 20%
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
STEP 1. M.U.T.-III data list
Item 49: Transmission range switch
Check that the service data changes when the selector lever is moved to all ranges.
OK: The service data changes in response to the selector lever operation.
Q. Is the check result normal?
YES Intermittent malfunction
NO Go to Step 2.
STEP 2. Check the following connector:
- B-09 transmission range switch connector
- C-40 TCM connector
Check the terminals for a contact status problem and internal short circuit.
Q. Is the check result normal?
YES Go to Step 3.
NO Repair the defective connector.
STEP 3. Check for open circuit in wiring harness between the ETACS-ECU connector and the transmission range switch connector
Between the C-313 ETACS-ECU connector (terminal No.4) and the B-09 transmission range switch connector (terminal No.3)
NOTE:
Prior to the wiring harness inspection, check the intermediate connectors C-39 and A-10, and repair that if necessary.
Q. Is the check result normal?
YES Go to Step 4.
NO Repair the wiring harness.
STEP 4. Check for open circuit in the wiring harness between the transmission range switch connector and the TCM connector
- Between B-09 transmission range switch connector (terminal No.2) and C-40 TCM connector (terminal No.32)
- Between B-09 transmission range switch connector (terminal No.5) and C-40 TCM connector (terminal No.45)
- Between B-09 transmission range switch connector (terminal No.8) and C-40 TCM connector (terminal No.34)
- Between B-09 transmission range switch connector (terminal No.9) and C-40 TCM connector (terminal No.33)
- Between B-09 transmission range switch connector (terminal No.1) and C-40 TCM connector (terminal No.46) [Vehicles without sport mode]
Q. Is the check result normal?
YES Go to Step 5.
NO Repair the wiring harness.
STEP 5. Transmission range switch and control cable adjustment
Refer to Adjustments.
Q. Is the check result normal?
YES Go to Step 6.
NO Adjust the transmission range switch and control cable.
STEP 6. Transmission range switch continuity check
Refer to Testing and Inspection.
Q. Is the check result normal?
YES Go to Step 7.
NO Replace the transmission range switch.
STEP 7. Symptom recheck after erasing diagnostic trouble code
Q. Is the check result normal?
YES Intermittent malfunction
NO Replace TCM.