0GC · DQ381 DSG

P173500 and P173600 fault codes

Q: What does P173500 mean on a DQ381 gearbox?

P173500 identifies an electrical malfunction involving clutch position sensor 1 in the 0GC/DQ381 gearbox context.

Q: What does P173600 mean on a DQ381 gearbox?

P173600 identifies an electrical malfunction involving clutch position sensor 2. The gearbox may enter limp mode and lose one set of gears.

Q: Can P1735 or P1736 be repaired?

A repair may be possible, but the gearbox, mechatronic system and electrical fault must be diagnosed before the correct repair route can be confirmed.

P173500 and P173600 identify electrical malfunctions involving clutch position sensor 1 or 2 in the 0GC/DQ381 DSG. The gearbox may enter limp mode and operate only one set of gears.

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P173500Clutch position sensor 1

P173600Clutch position sensor 2

P0C2900Auxiliary pump circuit

LeicesterSpecialist mechatronic diagnosis

What P1735 and P1736 mean

P173500: clutch position sensor 1 electrical malfunction

This code identifies an electrical fault associated with the first clutch position sensor circuit. Depending on the active failure strategy, the gearbox can restrict operation to protect the transmission.

P173600: clutch position sensor 2 electrical malfunction

This code identifies the corresponding electrical fault for clutch position sensor 2. Affected vehicles can lose odd or even gears when the gearbox enters limp mode.

P0C2900: auxiliary transmission fluid pump control performance

P0C2900 relates to the performance of the auxiliary transmission-fluid pump control circuit. Electrical supply, pump control and associated gearbox conditions require testing.

Typical reported symptoms

Gearbox warning on the dashboard
Only odd or even gears available
Loss of reverse or selected gears
Limp mode after driving
Fault returns after clearing
Intermittent normal operation

Fault finding

Diagnosis before repair

Confirm the failure

Record both current and historic faults and confirm which gears remain available.

Test the system

Assess relevant electrical circuits, sensor information and mechatronic operation.

Repair and retest

Complete the justified repair, required adaptations and road-test verification.

DQ381 questions

Frequently asked questions

What does P173500 mean?

In the 0GC/DQ381 context, it identifies an electrical malfunction involving clutch position sensor 1.

What does P173600 mean?

It identifies an electrical malfunction involving clutch position sensor 2. The gearbox can retain only odd or even gears when protection mode is active.

Can P1735 or P1736 be repaired?

A repair may be possible, but diagnosis is required to confirm the affected circuit and the condition of the mechatronic and gearbox systems.

DQ381 showing P1735 or P1736?

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