Chrysler 15 Vehicle Speed Sensor Signal Missing
How to read it
Code 15 reads as 1 flash, pause, 5 flashes on the check-engine light. Cycle the ignition key on, off, on, off, then leave it on with the engine off, and count the flashes on the power loss or check-engine light.
New to flash codes? The How to Read Chrysler OBD-I Codes with the Key Cycle walks through the test and what the numbers mean. The general OBD-I guide covers the rest.
What does Chrysler code 15 mean?
Vehicle Speed Sensor Signal Missing
Common causes of 15
- Failed vehicle speed sensor in the transmission or transaxle
- Open or shorted VSS wiring to the controller
- Broken speedometer cable or drive gear on cable models
- Faulty speed sensor buffer module on some models
- On some models an ISC motor position sensor fault sets this same code
How to fix 15
- Confirm whether the speedometer works since it shares the VSS signal
- Inspect the VSS connector and wiring at the transmission
- Test sensor output pulses while the drive wheels turn
- Check the drive gear and cable on cable driven models
- Test the ISC motor position sensor on models that use it
- Clear the code and road test to confirm the speed signal returns
Sources and review
Review: qualified. Read the source limits below.
- Chrysler OBD-I trouble codes, model and year page
live reference page (troublecodes.net)
Supports: code identity and Chrysler meaning
Fetched directly from the linked model page. Single publisher, so the record is qualified, not verified. Causes and check order are curator-written from the circuit the code names.
- Chrysler OBD-I trouble codes, model and year page
live reference page (troublecodes.net)
Supports: code identity and Chrysler meaning
Fetched directly from the linked model page. Single publisher, so the record is qualified, not verified. Causes and check order are curator-written from the circuit the code names.
Last updated 2026-10-10.
Report a correction for 15. Include your vehicle, the issue and a source if you have one.