SAAB WIS ONLINE

PRE-RELEASE

TCS/ESP / C0121 04

Read the instructions below then start the fault diagnostic procedure.

Symptom: ABS/TCS/ESP warning lamp on. Message appears in display. Steering column lock not working.

  C0121 04


Valve Relay Does Not Close

Fault symptom

ABS/TCS/ESP warning lamp on.

Message appears in display.

Steering column lock not working.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.
Valve activated

Fault criteria:

When voltage on output is below 2 V.

System reaction to a fault:

No ABS function
No TCS/ESP function

Diagnostic help

Diagnosis regards:

Electrical fault in the component.

Functions in the diagnostic tool related to the fault:

Test value:
Valve Feed
Activation:
Valve Feed
(See also description of readings/activations in diagnostic tool)

PRE-RELEASE