A6 Sedan V6-2.8L (ATQ) (2000)
Engine Speed Sensor: Testing and Inspection
Engine Speed Signal, Checking
Special Tools and Equipment
-
VAG1526A
-
VAG1527B
-
VAG1594A
-
VAG1598/31
-
VAS5051 with VAG5051/1
or
-
VAG1551 with VAG1551/3B
NOTE: The engine speed signal is output at terminal 37 of the Engine Control Module (ECM). The signal is used, among other things, for RPM display
in the instrument cluster.
-
Connect VAG1598/31 test box at wiring harness to ECM, do not connect ECM. Refer to "Scan Tool Testing/Wire And Component Test Using
VAG1598/31 Test Box", See: Computers and Control Systems/Testing and Inspection
-
Check the following wire connection for open circuit and short circuit to Ground (GND) and B+:
Test box VAG1598/31 Socket
Instrument cluster Terminal