Knock Sensor - Terminal Number Corrections
Group: 28Number: 96-01
Date: Sept. 10, 1996
File This Technical Bulletin in Repair Manual NO: W42 013 195 105
Subject:
Knock Sensor Terminal Number, Correction
Model(s):
A6 2.8L with OBDII (MMS 400)
The following information up-dates pages 28-29, 28-30, and 28-31 of the Repair Manual listed above.
This information will be integrated in the next Repair Manual up-date.
Checking wiring between knock sensors and ECM
Terminal assignments inside connector:
1.- Ground (GND)
2.- Signal wire
3.- Shield
Knock Sensor 1 -G61-
- Check ground wire continuity of knock sensor 1 -G61 - between terminal 1 of connector in engine compartment and test box socket A14.
^ Specification: maximum 1 Ohm
- Check signal wire continuity of knock sensor 1 -G61- between terminal 2 of connector in engine compartment and test box socket A13.
^ Specification: maximum 1 Ohm
- Check shield continuity of knock sensor 1 -G61- between terminal 3 of connector in engine compartment and Ground.
^ Specification: maximum 1 Ohm
Knock Sensor 2 -G66-
- Check ground wire continuity of knock sensor 1 -G66- between terminal 1 of connector in engine compartment and test box socket A14.
^ Specification: maximum 1 Ohm
- Check signal wire continuity of knock sensor 2 -G66- between terminal 2 of connector in engine compartment and test box socket A15.
^ Specification: maximum 1 Ohm
- Check shield continuity of knock sensor 1 -G61 - between terminal 3 of connector in engine compartment and Ground.
^ Specification: maximum 1 Ohm
If specified values are not obtained:
- Repair open or short circuit in wiring as necessary.
Knock sensor 1 (bank 1):
Knock sensor ECM connector A or
terminal number engine ground (GND)
1 Ground A14
2 Signal A13
3 Shield GND
^ Knock sensor 2 (bank 2):
Knock sensor ECM connector A or
terminal number engine ground (GND)
1 Ground A14
2 Signal A15
3 Shield GND