Jetta L5-2.5L (CBTA) (2008)
If the manufacturers test box is being used, perform the following step.
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Install the Adapter Cable (121 Pin) VAG1598/31.
If the manufacturers test box is not being used, perform the following step.
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Remove the Motronic Engine Control Module (ECM) J623.
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Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve N112 electrical harness connector terminal 2 to the Motronic Engine
Control Module (ECM) J623 electrical harness connector T60 terminal 17 for an open circuit.
Secondary Air Injection (AIR)
Motronic Engine Control Module
Solenoid Valve N112 electrical
ECM) J623 electrical connector
harness connector terminal
T60 terminal or test box socket
2
17
Specified value: 1.5 Ohms Max.
If the specification was not obtained:
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Check the wiring for an open, high resistance or short to ground.
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring:
-
Replace the Motronic Engine Control Module (ECM) J623.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: 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. See: 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. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes/Readiness Code Description
