DTC 29

DTC 29 Simultaneous Drop-out of Front Speed Sensors






Circuit Description

A DTC 29 relates to the BPMV losing the signals from both front speed sensors with the vehicle at speeds over 12 mph (brake released) or 20 mph (brake applied). The 8-way harness connector or the BPMV are the most probable causes for this DTC.

Test Description

- Check the condition of the BPMV 8-way connector and harness.
- Check all speed sensor resistance values.

Diagnostic Aids

Do not rotate the wheel while measuring speed sensor resistance.

Do not pierce the electrical connectors, wires, seals or insulation during testing. Doing so will break the seal and lead to corrosion and failure of the wiring and terminals.