Jetta GL L4-1.9L DSL Turbo (ALH) (2001)
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Measure MAF sensor voltage supply between following connector terminals:
Terminal: G70
Specification
2 + Ground
Approx. battery voltage
2 + 3
Approx. battery voltage
4 + Ground
Approx. 5.0 V
4 + 3
Approx. 5.0 V
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Switch ignition off.
If no voltage is present:
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Remove wiper arms and plenum cover.
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Connect test box VAG 1598/22 (through my 1999) or VAG 1598/31 (from my 2000) to control module wiring harness.
