P1934 - Vehicle Speed Signal - DTC Chart

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P1934 - VEHICLE SPEED SIGNAL - DTC CHART

Description: This DTC sets when there is a sudden loss of vehicle speed signal over a period of time. Vehicle speed data is received from either the transmission control module (TCM) or the anti-lock brake system (ABS) module.
Possible Causes: VSS+ circuit open VSS- circuit open VSS circuit short to ground VSS circuit short to voltage Damaged drive mechanism for VSS Damaged VSS Damaged wheel speed sensors Damaged wheel speed sensor harness circuits
Diagnostic Aids: Monitor the VSS PID while driving the vehicle. If vehicle speed data is lost, check the TCM or ABS module for related DTCs.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
Manual Transmission	GO to Pinpoint Test DP .
All others	The PCM uses information from the ABS module and the transmission control module (TCM) to calculate vehicle speed. Check these modules for DTCs.