# Service bulletin 9903

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 604432
- Published by NHTSA: 1999\-04\-29
- Manufacturer's number: 9903
- Manufacturer's date: 1999\-02\-08
- NHTSA component: ELECTRICAL SYSTEM:IGNITION:MODULE

## NHTSA's summary

INFORMATION REGARDING ELECTRONIC CONTROL MODULE \(ECM\) CODING. \*TT

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Ignition

## Vehicles listed

- 1999 VOLKSWAGEN GOLF
- 1999 VOLKSWAGEN JETTA

## Other bulletins for the same vehicles and component

- [TT641402](/bulletins/10239789.md), 2023-07-31, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW:ELECTRICAL HEATING ELEMENT; ELECTRICAL SYSTEM:IGNITION:SWITCH; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. To detect which line\(s\) is inoperative, utilize a volt meter to check for 0 V, which will be present after the open in the grid line. The check must be performed with the engine running and heated rear window switched on. Switch OFF the ignition and visually locate the damage. Proceed with checking any other lines as necessary. Once the damaged line is identified, repair utilizing the Repair kit by Permatex® ITEM 09117.
- [0001](/bulletins/615893.md), 2001-02-02, Service bulletin: ELECTRICAL SYSTEM:IGNITION:MODULE. SUBJECT REGARDING THE ELECTRONIC CONTROL MODULE \(ECM\), MATING HARNESS CONNECTOR AFTER REPLACING ECM OR HARNESS. \*TT
- [0002](/bulletins/615892.md), 2001-02-02, Service bulletin: ELECTRICAL SYSTEM:IGNITION:MODULE. SUBJECT REGARDING ELECTRONIC CONTROL MODULE \(ECM\), MODIFYING ECM CONNECTOR TO MATCH WIRING HARNESS. \*TT

JSON: [/v1/bulletins/604432](/v1/bulletins/604432)

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