Jetta Sedan L5-2.5L (BGP) (2005)
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Contact
Test box socket
3
10
4
11
Wiring resistance: max. 1.5 Ohms
Continued for all vehicles
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Check wires for short circuit to each other, to B+ and Ground (GND).
Specification: Infinite Ohms
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Erase DTC memory for Motronic engine control module (ECM) J220. See: Testing and Inspection/Scan Tool Testing and Procedures/With
Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data
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Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Readiness Code, Generating
If there is no malfunction in wire connection:
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Replace Motronic Engine Control Module (ECM) J220.
Oxygen Sensor (O2S) Heater Z19 For Heated Oxygen Sensor (HO2S) G39 Before Catalytic
Converter, Checking
Oxygen Sensor (O2S) Heater Z19 For Heated Oxygen Sensor (HO2S) G39 Before Catalytic Converter, Checking
NOTE: When servicing terminals in harness connector of Heated Oxygen Sensor (HO2S) G39, use only gold-plated terminals.
Special tools, testers and auxiliary items required
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Hand multimeter V.A.G 1526 or Multimeter V.A.G 1715
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Connector test set V.A.G 1594
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Wiring diagram
Test conditions
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The respective fuse of Heated Oxygen Sensor (HO2S) G39 must be OK.
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Ignition is switched off.
Test sequence