Instrument Panel, Gauges and Warning Indicators

Engine Speed:

Fault symptoms
Tachometer in max. position, 7000 rpm.

Condition
Engine speed information, signal from engine management system, is higher than 8000 rpm for 3.6 seconds.

Diagnostic help
Reading of the current engine speed can be obtained with the diagnostic tool.

The diagnostic tool can also be used to activate the tachometer.

Check the wiring harness
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short-circuits in the leads. Observe the multimeter, test lamp or diagnostic tool during the test.