DTC P0705: Transmission Range Sensor "A" Circuit (PRNDL Input): Notes
- -
DTC detecting condition:
Immediately at fault recognition
Trouble symptom:
- Shift characteristics are erroneous.
- The range position of the select lever and the position of shift indicator display do not match.
Wiring diagram:
CVT control system Ref. to WIRING SYSTEM>CVT CONTROL SYSTEM .
- Use CHECK BOARD when measuring the TCM terminal voltage and resistance.
- After servicing or replacing faulty parts, perform the last step of the basic diagnostic procedure. Ref. to TRANSMISSION (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .
- CHECK INPUT SIGNAL FOR TCM.
- Turn the ignition switch to ON.
- Move the select lever to each range, read the data of [P Range], [R Range Signal], [N Range] and [D Range Signal] using the Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DATA MONITOR .
Is display "OFF" for the range other than corresponding range?
Yes: Go to 4.
No: Go to 2.
- CHECK HARNESS.
- Turn the ignition switch to OFF.
- Disconnect the TCM connector.
- Disconnect the inhibitor switch connector.
- Measure the resistance between TCM connector and chassis ground.
Connector & terminal
(T10) No. 38 - Chassis ground:
(T10) No. 37 - Chassis ground:
(T10) No. 36 - Chassis ground:
(T10) No. 35 - Chassis ground:
Is each resistance 1 MΩ or more?
Yes: Go to 3.
No: Repair the short circuit of transmission harness.
- CHECK INHIBITOR SWITCH.
Move the select lever to each range, and measure the resistance between inhibitor switch terminals.
Connector & terminal
No. 2 - No. 1:
No. 5 - No. 1:
No. 3 - No. 1:
No. 4 - No. 1:
Is the resistance other than corresponding range 1 MΩ or more?
Yes: Go to 4.
No: Replace the inhibitor switch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>INHIBITOR SWITCH .
- CHECK FOR POOR CONTACT.
Is there poor contact between TCM, inhibitor switch, transmission ground?
Yes: Repair the poor contact.
No: Replace the TCM. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>TRANSMISSION CONTROL MODULE (TCM) .