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.

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HOMESERVICE MANUALSAUDI1996A4 BASE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 132 (IGNITION SYSTEM, GENERIC SCAN TOOL - 4.2L - ART, AWN, BBD)IGNITION SYSTEMIGNITION SYSTEM, CHECKINGCHECK CAMSHAFT POSITION (CMP) SENSORCHECKING ACTIVATION

1996 Audi A4 Base, Standard

Checking activation

1996 Audi A4 Base, StandardSECTION Checking activation

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2004 Audi A6, 2003 Audi S6, 2003 Audi A6, 2002 Audi S6, and 2002 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.

Connect voltage tester e.g. V.A.G 1527 B with measuring probes and connector adapters from V.A.G 1594 A between socket 2 (CMP sensor signal) and socket 1 (B+); the harness connector remains connected.
NOTE: Connector sockets are numbered respectively on the rear side of the connector.

Fig 1: Connecting Voltage Tester V.A.G 1527 B With Measuring Probes To CMP Sensor

Courtesy of AUDI OF AMERICA, INC.

Operate starter for a few seconds.
- LED must blink.
NOTE: Voltage testers do not go out completely during low current pick-up between activations by the ECM, but rather continue to glow a little and then get significantly brighter during activation.
Switch ignition off.

If LED does not blink:

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.