U2103 00 (ESP - Electronic Stability Program)

U2103 00

TCS/ESP was Missing on Bus







Fault symptom
- TCS/ESP warning lamp comes on.
- Messages shown in SID.

On-board diagnosis


Enable criteria:
- Ignition ON.

Fault criteria:
- Control module absent on the P-bus.

System reaction to a fault:
- 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.
- In order to read DTC from TCS/ESP, communication with CIM is required. If the DTC is stored and read with the diagnostic instrument, it indicates intermittent bus lead fault.

Functions in the diagnostic tool related to the fault:

Test value:
- Bus Off Counter, P-Bus
(See also description of readings/activations in diagnostic tool)