ESP / C0040 2A
Read the instructions below then
start the fault diagnostic procedure.
Symptom: ABS warning lamp on
Message appears in display.
Steering column lock not working.
Right Front Wheel Speed Sensor Circuit, Erratic Signal
Fault symptom
ABS 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:
Sensor sends unrealistic vehicle speed signals (within 150 ms) to the control module. |
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) |