AA80E Automatic Transmission: Automatic Transmission System

AA80E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)

DTC P0705 - Transmission Range Sensor Circuit Malfunction (PRNDL Input)

DESCRIPTION

The park/neutral position switch detects the shift lever position and sends signals to the TCM.






MONITOR DESCRIPTION

This DTC indicates a problem with the park/neutral position switch or the wire harness in the park/neutral position switch circuit.
The park/neutral position switch detects the shift lever position and sends a signal to the TCM.
For security, the park/neutral position switch detects the shift lever position so that the engine can be started only when the shift lever is in the P or N position.
The park/neutral position switch sends a signal to the TCM according to the shift position (R or D). The TCM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The TCM will turn on the MIL and store the DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS
- When either condition below is met: Condition (A) or (B)

Condition (A)

When 2 or more of the following signals are input at the same time:






COMPONENT OPERATING RANGE





WIRING DIAGRAM





INSPECTION PROCEDURE
HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
NOTE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

1 Warm up the engine.
2 Turn the engine switch off.
3 Connect the Techstream to the DLC3.
4 Turn the engine switch on (IG).
5 Turn the Techstream on.
6 Enter the following menus: Powertrain / ECT / Data List.
7 According to the display on the Techstream, read the Data List.

TCM:





PROCEDURE

1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY




(a) Disconnect the park/neutral position switch connector.
(b) Measure the resistance of the park/neutral position switch when the shift lever is moved to each position.
Standard resistance:






NG -- REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY
OK -- Continue to next step.

2. CHECK PARK/NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)




(a) Disconnect the park/neutral position switch connector.
(b) Turn the engine switch on (IG).
(c) Measure the voltage of the wire harness side connector.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - TCM)




(a) Turn the engine switch on (IG).
(b) Measure the voltage of the wire harness side connector.
Standard resistance:





HINT: *: The voltage will drop slightly due to the turning on of the back up light.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. REPLACE TCM
(a) Replace the TCM Removal.
NEXT -- PERFORM A/T CODE REGISTRATION