Engine Controls - Incorrect FC G68 (Speed Sensor) Set

90vw10
Subject: CIS-E Motronic - VAG 1551 Fault Discrepancy


Model(s): Passat, Jetta GLI
Group: D2

Number: D2-90-T01

Date: May 31, 1990
When using the VAG 1551 tester for diagnosing faults in the CIS-E Motronic Engine management System, the following fault may be indicated:

Transmission speed sensor - G68

This fault is in error, it should read:

Speed sensor - G54

The Fault code table on Page D2-30-1 should be revised as follows:


Fault
Code VAG 1551 Display Possible Cause of Fault Repair

1111 Control unit defective Defective components in Replace (J204)
control unit (J 204)

1231 Speed Sensor (G54) (G54) defective Check (G54),
Section D2-50 Test step 5

No signal Open circuit Check wiring