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
^ Does not detect the transmission range switch input signal for two seconds.
^ TCM detects the multiple inputs from the transmission range switch for five seconds.

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)
^ 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)

Logic Flow Charts (Monitor Sequence):

DTC SET CONDITIONS

Check Conditions
^ Vehicle speed: 10 km/h (6.2 mph) or more.
^ Throttle position: 1/8 or more.
^ Engine speed: 450 r/min or more.
^ Voltage of battery: 9 volts or more.
^ Voltage of battery: 16 volts or less.
^ Transmission range switch: normal.
^ Secondary pulley speed sensor: normal.

Judgement Criteria
^ Transmission range switch: multiple signal. (2 seconds)
^ Transmission range switch: no signal. (5 seconds)

OBD-II DRIVE CYCLE PATTERN
All the conditions below continue for 6 seconds.
^ Transmission range switch: D
^ Vehicle speed: 10 km/h (6.2 mph) or more
^ Throttle position: 1/8 or more
^ Engine speed: 450 r/min or more
^ Transmission fluid temperature: 20°C (68°F) or more.
^ Transmission fluid temperature: 99°C (210°F) or more.

PROBABLE CAUSES
^ Malfunction of the transmission range switch
^ Improper adjustment of transaxle control cable
^ Damaged wiring harness and connectors
^ Malfunction of TCM

DIAGNOSTIC PROCEDURE

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

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.

Q: Is the check result normal?
YES: Go to Step 7.
NO: Replace the transmission range switch.

STEP 7. Symptom recheck after erasing diagnosis code

Q: Is the check result normal?
YES: Intermittent malfunction
NO: Replace TCM.