Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA2011TSX SPORT WAGON L4-2.4LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSMISSION CONTROL SYSTEMSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESSPEEDOMETER DOES NOT WORK (A/T)
2011 Acura TSX Sport Wagon L4-2.4L
Speedometer Does Not Work (A/T)
2011 Acura TSX Sport Wagon L4-2.4LSECTION Speedometer Does Not Work (A/T)
Speedometer does not work
F-CAN communication line error
Gauge control module defective
PCM defective
Output shaft (countershaft) speed sensor defective
Notes
Check the F-CAN communication line F-CAN Circuit Troubleshooting.
Notes
Check the F-CAN communication line by using the gauge control module self-diagnostic function.
Notes
Check the speedometer drive circuit in the gauge control module using the HDS.
Notes
Inspect the transmission range switch operation.
Notes
Check the output shaft (countershaft) speed sensor installation.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.