Checking gear change signal from automatic gearbox: VW Golf IV / Bora 1.9 TDI (AGP, AGR, AHF, ALH, …)

🧭 Before you start

Fits: VW Golf IV / Bora (1J)

Don't miss

• Connect fault readerV.A.G 1551 or vehicle system testerV.A.G 1552 and select control unit for engine electronics with "“address word 01”". Engine must be idling. (Connect fault reader and select engine electronics control unit .)
• Because data transfer is slow, display of the specification may be delayed in some circumstances.

🔧 Engine codes this applies to

📋 Procedure

1. Connect fault readerV.A.G 1551 or vehicle system testerV.A.G 1552 and select control unit for engine electronics with "“address word 01”". Engine must be idling. (Connect fault reader and select engine electronics control unit .)
2. ⚠ Secure fault reader to rear seat and operate from this position. — Press keys 0 and 8 for function "“Read measured value block”" and confirm entry with Q key.
3. Press keys 0, 0 and 9 for "“Display group number 9”" and confirm entry with Q key.
4. Carry out road test and when doing this observe display (2nd person necessary).
5. Observe displayed figure in display zone 3 when changing into 2nd gear: Specification: less than 51 mg/stroke for short period [Note: Because data transfer is slow, display of the specification may be delayed in some circumstances.]

6. Press → button.
7. Press keys 0 and 6 for function "“End data transfer”" and confirm entry with Q key.
8. Switch off ignition.
9. Connect adapterV.A.G 1598/22 to control unit wiring harness.
10. Check wiring connection from engine control unit to gearbox control unit for open/short circuit

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