SAAB WIS ONLINE

B1710

Read the instructions below then start the fault diagnostic procedure.

Symptom: Tachometer in max. position, 7000 rpm.

B1710

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

A 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.