P0705

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK GEARBOX warning lamp is on. TCM in Limp-Home mode.

P0705

Fault symptoms

CHECK GEARBOX warning lamp is on.

TCM in Limp-Home mode.

Conditions

Impermissible combination of the gear selector position sensor's voltage inputs to the TCM.

Diagnostic help

The diagnostics instrument can be used to obtain readings of the gear selector position sensor's voltage inputs.

Select " Data Display / Output Control (New)"

select " Gear Position Switch A" (B, C, PA)

The diagnostics instrument shows the status of all voltage inputs, ON (B+) and OFF (ground).

If the gear selector position sensor is found to be faulty, it could be caused by a short circuit in the wiring harness. Before replacing the sensor, check the wiring harness for shorting to ground.

Check the wiring

Jiggle the wiring harness at several points and in different directions to reveal intermittent breaks and short circuits in the various leads. Observe the multimeter, test lamp or diagnostic instrument while carrying out this check.