DTC P0708:00


id050200817200

DTC P0708:00

TR switch circuit high input

DETECTION CONDITION
•  The PCM detects that input voltage from the TR switch is more than 4.78 V for 100 s when the following conditions are met.
―  Vehicle speed: more than 20 km/h {12 mph}
―  Engine speed: more than 530 rpm
Diagnostic support note:
•  This is a continuous monitor (CCM).
•  The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  The HOLD indicator light flashes.
•  PENDING CODE is available.
•  FREEZE FRAME DATA is available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  TR switch malfunction
•  Connector or terminal malfunction
•  Open circuit in wiring harness between TR switch terminal C and PCM terminal 1AS
•  Short to power supply in wiring harness between TR switch terminal C and PCM terminal 1AS
•  Open circuit in wiring harness between TR switch terminal B and PCM terminal 1AG
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related Service Bulletins and/or on-line repair information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT TR SWITCH CONNECTOR FOR POOR CONNECTION
•  Turn the ignition switch off.
•  Disconnect the TR switch connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion)
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 8.
No
Go to the next step.
4
INSPECT TR SWITCH CIRCUIT FOR SHORT TO POWER SUPPLY
•   Turn the ignition switch to the ON position (Engine off).
•  Measure the voltage between TR switch terminal C (wiring harness-side) and body GND.
•  Is the voltage B+?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 8.
No
Go to the next step.
5
INSPECT TR SWITCH
•  Inspect the TR switch.
•  Is there any malfunction?
Yes
Adjust or replace the TR switch, then go to Step 8.
No
Go to the next step.
6
INSPECT PCM CONNECTOR FOR POOR CONNECTION
•  Turn the ignition switch off.
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion)
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 8.
No
Go to the next step.
7
INSPECT TR SWITCH CIRCUIT FOR OPEN CIRCUIT
•  Turn the ignition switch off.
•  Inspect for continuity between the following circuits:
―  TR switch terminal C (wiring harness-side) and PCM terminal 1AS (wiring harness-side)
―  TR switch terminal B (wiring harness-side) and PCM terminal 1AG (wiring harness-side)
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to the next step.
8
VERIFY TROUBLESHOOTING OF DTC P0708:00 COMPLETED
•  Make sure to reconnect all the disconnected connectors.
•  Clear the DTC from the memory using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
―  Drive the vehicle at more than 20 km/h {12 mph} for 100 s.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “After Repair Procedure”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE.)
No
DTC troubleshooting completed.