TCS/ESP / C0040 2A
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.
Right Front Wheel Speed Sensor Circuit, Erratic Signal
Fault symptom
ABS/TCS/ESP warning lamp on.
Message appears in display.
Steering column lock not working.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| • | Vehicle speed over 6 km/h |
Fault criteria:
| The sensor sends unrealistic vehicle speed signals to the control module for at least 150 ms. |
System reaction to a fault:
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. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
