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 5 seconds.
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

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?

	Intermittent malfunction

	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?

	Go to Step 3.

	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?

	Go to Step 4.

	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?

	Go to Step 5.

	Repair the wiring harness.

STEP 5. Transmission range switch and control cable adjustment

Refer to

Q. Is the check result normal?

	Go to Step 6.

	Adjust the transmission range switch and control cable.

STEP 6. Transmission range switch continuity check

Refer to

Q. Is the check result normal?

	Go to Step 7.

	Replace the transmission range switch.

STEP 7. Symptom recheck after erasing diagnosis code

Q. Is the check result normal?

	Intermittent malfunction

	Replace TCM.