C0800 03

C0800 03
Supply Voltage Too Low





Fault symptom
ABS warning lamp on
TCS/ESP warning lamp comes on.
Messages shown in SID.
Steering column lock not working.
On-board diagnosis
Type of diagnosis:
Continuous
Enable criteria:
Ignition ON.
Fault criteria:
Battery voltage is below 9.5 V for 0.5 s.
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.
Functions in the diagnostic tool related to the fault:
Test value:
Battery Voltage
(See also description of readings/activations in diagnostic tool)