S6 V8-4.2L (BBD) (2004)
Engine Speed Sensor: Testing and Inspection
With Generic Scan Tool
Engine Speed (RPM) Sensor -G28-, Checking
Recommended special tools and equipment
-
VAG1526A hand multimeter
-
VAG1594A connector test kit
-
VAG1598/31 test box
NOTE: The engine speed (RPM) sensor detects RPM and reference marks. The engine cannot be started without a signal from the engine speed (RPM)
sensor -G28-. If the engine speed (RPM) sensor -G28- signal fails while the engine is running, the engine will stop immediately.
Test requirement:
-
Ignition switched off.
Work procedure
-
Before performing test, check sensor for proper installation and proper fitting.
-
No shavings or damage at Engine Speed (RPM) Sensor or sensor wheel.
-
Thickness of the spacer disc between sensor and automatic transmission must be 4.5 mm.
-
Disconnect electrical harness connector -Item 13 - from Engine Speed (RPM) sensor.
Checking internal resistance