SAAB WIS ONLINE

TCS/ESP / C0050 26

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.

  C0050 26


Wheel Sensor Rear Right. No Signal

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.
No ABS/TCS/ESP control.
Vehicle speed over 6 km/h

Fault criteria:


Control module receives substantial differences in speed from the four wheel sensors.
If one of the four wheel sensors display a value under 1.5 km/h and the other sensors display a value greater than 6 km/h for 3 seconds.
If two of the four wheel sensors display a value under 1.5 km/h and the other sensors display a value greater than 6 km/h for 10 seconds.
If three of the four wheel sensors show a value under 1.5 km/h and the other sensors show a value greater than 6 km/h for 120 seconds.

System reaction to a fault:


No ABS function
No TCS/ESP function

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.
____________________________________
When the DTC is generated, the ABS / TC lamp is lit by the control module. When the DTC is rectified and cleared, the lamp will remain on with the ignition on until the mechanic starts the car and drives it at a speed in excess of 10 km / h.
The DTC can be generated if one or both rear tyres have reduced traction when the front tyres have good traction (e.g. in snow or with the handbrake engaged on a loose driving surface) and TCS modulation is not active.

Functions in the diagnostic tool related to the fault:


Test value:
Wheel Speed Front Right
Wheel Speed LF
Wheel Speed RR
Wheel Speed LR
(See also description of readings/activations in diagnostic tool)