RDCM / U0073 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Message appears in display.
RDCM was Missing on Bus
Fault symptom
Message appears in display.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Battery voltage must be between 9 - 16 V. |
Fault criteria:
Dependent:
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 on bus leads or in the component. |
| Communication must be OK to read out DTCs from the control module. If the DTC is stored and read out with the diagnostic tool, it indicates an intermittent bus lead fault. |
Functions in the diagnostic tool related to the fault:
| • | Read / Reset Bus Configuration |
| (See also description of readings/activations in diagnostic tool) |
