Checking engine operating statuses: VW Passat B5 2.3 (AZX)

🧭 Before you start

Fits: VW Passat B5 (3B)

• Special tools named: V.A.G 1551, V.A.G 1552

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• A road test may have to be performed to show achieve overrun in display.A 2nd person is required when performing a road test.
• A road test may have to be performed to achieve full throttle in display.A 2nd person is required when performing a road test.

🔧 Engine codes this applies to

📋 Procedure

1. Connect fault reader V.A.G 1551 (V.A.G 1552). Start engine and select "“Address word”" 01 of engine control unit. (Connect fault reader and select engine control unit )
2. Press buttons 0 and 8 for function "“Read measured value block”" and confirm entry with Q button.
3. Press keys 0, 0 and 5 for "“Display group number 5”" and confirm entry with Q key.
4. Check whether the control unit recognises the operating statuses (display zone 4):
5. Rev up evenly.

6. Floor accelerator (onto throttle valve stop).
7. Increase engine speed to above 3000 rpm.
8. Then close throttle abruptly. [Note: A road test may have to be performed to show achieve overrun in display.A 2nd person is required when performing a road test.]
9. Floor accelerator (onto throttle valve stop). [Note: A road test may have to be performed to achieve full throttle in display.A 2nd person is required when performing a road test.]
10. ⚠ Secure fault reader to rear seat and operate from this position. — Press → button.
11. Press buttons 0 and 6 for function "“End output”" and confirm entry with Q button.
12. Check throttle valve module .
13. Read fault memory, if necessary, repair any faults and then clear fault memory , Reading and clearing fault memory.

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