With Generic Scan Tool

Check Camshaft Position (CMP) sensor

Recommended special tools and equipment
- VAG1526 multimeter or VAG1715 multimeter
- VAG1594 connector test kit
- Wiring diagram

Test requirements







- The respective fuses of Motronic Engine Control Module (ECM) - J220- must be OK.
- Battery voltage must be at least 11.5 volts.
- All electrical consumers such as, for example, lights and rear window defroster must be switched off.
- Parking brake must be engaged or else daylight driving lights will be switched on.
- Ground (GND) connections between engine and chassis must be OK.

Test sequence







- Disconnect 3-pin connector -1- from Camshaft Position (CMP) sensor -2-.
- Connect multimeter to terminal 1 (B+) and 3 (Ground -GND-) of the respective connector for Camshaft Position (CMP) sensor for voltage measurement.
- Switch ignition on.
Specified value: at least 4.5 V
- Switch ignition off.

If there is no voltage:
- Connect test box to control module wiring harness, connect test box for wiring test.







- Check for open circuits in wires between test box and connector according to wiring diagram.
Terminal 1 + socket 98
Terminal 2 + socket 86
Terminal 3 + socket 108
Wire resistance: max. 1.5 ohms
- Also check wires for short circuit to each other.
Specified value: Infinite Ohms

If no malfunctions are found in the wires and there was voltage between terminals 1 + 3:
- Replace Camshaft Position (CMP) sensor:
- Vehicles with engine code APH, item 7.
- Vehicles with engine code AWP, AWV, item 7.
- Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
- Generate readiness code.

If no malfunctions are found in wires and there was no voltage between
terminals 1 + 3:
- Replace Engine Control Module (ECM).