1B5102

1B5102 - P15B1

Information saved in
DME

Fault code
1B5102 - P15B1

Fault text
Terminal 15_3, line from CAS, electrical: short circuit to
ground or open circuit

Fault description
The diagnostic function monitors the redundant "Terminal
15 off" wire from the CAS to the DME for short circuits to
ground and opens.

Condition for fault identification
Test condition:
The fault is recognized by the driver circuit diagnostic
function.
Potential problem source(s):
- Defect in wiring harness between CAS and DME
- Defective CAS
- Defective DME
Terminal condition: Terminal 15
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- none

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
- Check wiring harness between CAS and DME
- Replace CAS
- Replace DME

Fault effect and breakdown warning
Breakdown notice:
None
Possible apparent symptoms:
None

Driver information
Warning light:
MY10 ECE:
- ECE emissions warning lamp: on
- ECE electronic engine power reduction: on
- CC message: on
MY10 US:
- US emissions warning lamp: off
- US electronic engine power reduction: on
- CC message: on
MY11 ECE:
- ECE emissions warning lamp: off
- ECE electronic engine power reduction: on
- CC message: on

Service instruction
None