Clutch Switch: Testing and Inspection

Signal From Clutch Pedal Switch, Checking

Recommended special tools and equipment
- V.A.G 1526 multimeter or V.A.G 1715 multimeter
- V.A.G 1594 connector test kit
- Wiring diagram

Requirements







- The respective fuse of Clutch pedal switch -F36- must be OK.
- Battery voltage must be at least 11.5 volts.
- All electrical consumers such as, lights and rear window defroster must be switched off.
- Parking brake must be engaged or else daylight driving lights will be switched on.
- If vehicle is equipped with an A/C system, it must be switched off.
- Ground (GND) connections between engine and chassis must be OK.
- Ignition switched off.

Work sequence
- Remove driver-side storage compartment.
- Disconnect connector from Clutch pedal switch -F36-.

Vehicles with 2-pin clutch pedal switch







- Measure resistance between terminals 1 + 2 of switch.
Specified value
Clutch pedal not depressed: max. 10.0 Ohms
Clutch pedal depressed: Infinite Ohms

Vehicles with 4-pin clutch pedal switch







- Measure resistance between terminals 2 + 3 of switch.
Specified value
Clutch pedal not depressed: max. 1.5 Ohms
Clutch pedal depressed: Infinite Ohms

Continued for all vehicles
If specified values are not obtained:
- Replace Clutch pedal switch -F36-.

NOTE: Note installation position of clutch pedal switch in the upper installation bore of mounting bracket.

- Erase DTC memory of Engine Control Module (ECM). Diagnostic mode 4: Reset/erase diagnostic data. Diagnostic Mode 4: Reset/Erase Diagnostic Data
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes

If specified values are obtained:
- Connect test box to control module wiring harness. connect test box for wiring test. Test Box, Connecting For Wiring Test

Vehicles with 2-pin clutch pedal valve switch







- Check wire between test box and 2-pin connector for open circuit according to wiring diagram:
- Vehicles with engine code AEG

Terminal 1 + socket 48

Wire resistance: max. 1.5 Ohms

- Vehicles with engine code AVH, AZG, BDC, BEV, BGD

Terminal 2 + socket 39

Wire resistance: max. 1.5 Ohms

Vehicles with 4-pin clutch pedal switch







- Check for open circuits in wire between test box and 4-pin connector according to wiring diagram:
- Vehicles with engine code AEG

Terminal 3 + socket 48

Wire resistance: max. 1.5 Ohms

- Vehicles with engine code AVH, AZG, BDC, BEV, BGD

Terminal 3 + socket 39

Wire resistance: max. 1.5 Ohms

Continued for all vehicles

- Check wires for short circuit to each other, to vehicle Ground (GND) and to B+.

Specified value: Infinite Ohms

If no malfunctions are detected in the wires and the resistance values are OK.
- Replace Motronic Engine Control Module (ECM) -J220-.