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Home >> Volkswagen >> 2000 >> Jetta Sedan (9M2) L4-1.9L DSL Turbo (ALH) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Glow Plugs, Checking >> With Generic Scan Tool
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With Generic Scan Tool



Glow Plugs, Checking

Recommended special tools and equipment
- VAG1527 voltage test lamp
- VAG1594 connector test kit
- 3220 flex wrench

Test requirements







- The respective fuses of Diesel-Direct fuel injection system must be OK:
- Battery voltage must be at least 11.5 Volts.
- Ignition switched off

Test sequence
- Disconnect glow plug connectors from glow plugs.







- Connect voltage test lamp wire to B+ using adapter clips from connector test kit.
- Attach test lead of voltage test lamp to each glow plug in succession.
LED lights up: Glow plug OK.
LED does not light up: Replace glow plug
- Remove and install glow plugs using 3220 flex wrench
Tightening torque: 15 Nm.
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