New Beetle Convertible L5-2.5L (BPS) (2006)
Specified value: Battery voltage.
If the specified value was Not obtained:
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Check the wiring connections from the Load Reduction Relay J59 to the Motronic Engine Control Module (ECM) Power Supply Relay (J271)
socket 4 for an open or a short circuit. Note: Fuse S-237 is between the J59 Load Reduction relay and the J271 ECM relay. Check for an open
S-237 fuse. If open, check for a short to ground between the fuse and ECM J271 relay.
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Check the wiring for open or short and connections for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring or connection.
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Repair as necessary.
If the specified value was obtained:
Checking activation
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Remove the Motronic Engine Control Module (ECM) Power Supply Relay (J271).
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Using a diode test lamp (12 V) connected to Battery +, check the Motronic Engine Control Module (ECM) Power Supply Relay Box socket 1
(relay terminal 85) while cranking the engine.
The test lamp should be ON.
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Switch the ignition OFF.
If the test lamp was ON:
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Replace the Motronic Engine Control Module (ECM) Power Supply Relay (J271):.
If the test lamp was not ON:
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Using a multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay socket 1 (relay terminal 85), to the Motronic Engine
Control Module (ECM) (J220) electrical harness connector T121 terminal 23 for resistance.
Specified value: 1.5 ohms Max.
If the specified value was Not obtained:
-
Check the wiring connection for an open circuit, high resistance or short circuit to Battery (+).
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Check the wiring connection for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and ground was not present from the ECM during crank:
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Replace the Motronic Engine Control Module (ECM) (J220). Refer to the Repair Information.
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: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09.
2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09.
3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] See: Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Readiness Code.