FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P1517

1B0A21 - P1517

Information saved in
DME

Fault code
1B0A21 - P1517

Fault text
Poor-road-surface detection: no wheel-speed signal received

Fault description
The diagnostic function monitors reception of the message.

Condition for fault identification
Test condition:
The fault is recognized when the message is not received in
the specified time.
Potential problem source(s):
- Signal error from at least one wheelspeed sensor
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- Engine ON

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

Action in service
- Continue fault diagnosis with DSC

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

Driver information
Warning light:
- ECE emissions warning lamp: off
- ECE electronic engine power reduction: off
- CC message: none
- US emissions warning lamp: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
None