New Beetle L4-1.9L DSL Turbo (BEW) (2006)
If the specified value was not obtained:
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Check the Glow Plug Relay (J52) socket 28/15 to the Ignition/Starter Switch (D) electrical harness connector terminal for an open circuit or a
short to Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
Checking Ground (GND)
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Using a Multimeter, check the Glow Plug Relay (J52) socket 3/85 to the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) (J248)
electrical harness connector terminal T80/50 for an open circuit.
Specified value: 1.5 ohms.
If the specified value was not obtained:
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Check the Glow Plug Relay (J52) socket 3/85 to the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) (J248) electrical harness
connector terminal T80/50 for an open circuit or a short to Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring and the voltage supply was OK:
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Replace the Glow Plug Relay (J52).
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Perform a road test to verify repair.
If the fault does not return:
Repair complete, Generate readiness code. Refer to => [ Readiness Code ] See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Readiness Code.
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End diagnosis.
If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK:
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Replace the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) (J248). Refer to => [ Engine Control Module, Replacing ] See:
Relays and Modules - Computers and Control Systems/Engine Control Module/Service and Repair/Engine Control Module, Replacing.
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Assembly is performed in the reverse of the removal.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 03 - Read DTC Memory.
2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 04 - Erase DTC Memory.
3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Readiness Code.
End diagnosis.