Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Checking wire connections between Camshaft Position (CMP) sensor and Engine Control Module (ECM): Notes
1999 Audi A6 BaseSECTION Notes
- Connect VAG1598/31 test box at wiring harness to ECM; do not connect ECM. See WIRE AND COMPONENT TEST USING VAG1598/31 TEST BOX .
- Check following wire connections for open circuit and short circuit to Ground (GND) and B+:
Camshaft Position (CMP) Sensor -G40- (Bank 1)
CMP SENSOR -G40- (BANK 1) CIRCUIT TEST: TERMINALS 1, 2, 3
| Harness connector Terminal | VAG1598/31 test box Socket |
|---|---|
| 1 (B+) | 98 |
| 2 (signal) | 86 |
| 3 (Ground -GND-) | 108 |
Camshaft Position (CMP) Sensor 2 -G163- (Bank 2)
CMP SENSOR -G163- (BANK 2) CIRCUIT TEST: TERMINALS 1, 2, 3
| Harness connector Terminal | VAG1598/31 test box Socket |
|---|---|
| 1 (B+) | 98 |
| 2 (signal) | 87 |
| 3 (Ground -GND-) | 108 |
- Repair open circuit or short circuit if necessary.
- If, after erasing DTC memory, a DTC relating to Camshaft Position (CMP) sensor (hall sensor) is indicated again, even though all previous tests were OK, following malfunction is possible:
- Shutter wheel for Camshaft Position (CMP) sensor is not aligned properly.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.