SAAB WIS ONLINE

B1780

Read the instructions below then start the fault diagnostic procedure.

Symptom: Car does not start.

B1780


Immobiliser data. Invalid data


Fault symptoms

Car does not start.

Conditions

Engine control module not programmed with the car.

Diagnostic help

Program immobilization in TWICE.

Main condition

The diagnostic trouble code is generated if a fault is found during two test cycles in succession. A test cycle lasts one second, i.e. it takes two seconds from when the fault occurs until a diagnostic trouble code is generated. If the fault disappears, the trouble code is deleted from the control module memory after the ignition has been turned on 20 times.

Diagnostic trouble codes are not generated if the voltage is below 11 V or over 14 V.

Check wiring harness.

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