Test sequence

• Disconnect 3-pin connector from Camshaft Position (CMP) sensor.

• Connect multimeter between terminal 1 (B+) and 3 (Ground -GND-) of the respective connector for camshaft position sensor for voltage measurement.
• Switch ignition on.

Specification: at least 4.5 V

• Switch off ignition.

If no voltage is present:

• Connect test box to ECM wiring harness → Test box, connecting for wiring test .
• Check wires between test box and 3-pin connector for open circuit according to wiring diagram.

Terminal 1+Socket 98

Terminal 2+Socket 86

Terminal 3+Socket 108

Wiring resistance: max. 1.5 Ω

• Also check wires for short circuit to each other.

Specification: ∞ Ω

If no malfunctions are found in wires and voltage was present between terminals 1 + 3:

• Replace Camshaft Position (CMP) Sensor -G40-.
• Erase DTC memory of ECM → Diagnostic mode 4: Reset/erase diagnostic data .
• Generate readiness code → Readiness code, generating .

If no malfunctions are found in wires and there was no voltage between terminals 1 + 3:

• Replace Engine Control Module (ECM) → Engine Control Module (ECM), replacing .
• Erase DTC memory of ECM → Diagnostic mode 4: Reset/erase diagnostic data .
• Generate readiness code → Readiness code, generating .