TPMS Receiver Module receives the vehicle speed signal from the transmission control module (TCM) and also receives the information of the tire inflation pressure from the transmitters and the transmitter’s condition. With these information, the TPMS decides that the warning lamp indication is needed or not.
This diagnostic procedure supports the following DTC:
DTC C0550 Input Failure Of Vehicle Speed
Vehicle speed is above 32 km/h (20 mph).
• | TCM inoperative |
• | Wiring harness damage between TPMS receiver module and TCM |
TPMS warning lamp blinks for 75 seconds.
The conditions that set the DTC are no longer present, the DTC can be cleared by scan tool.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Tire Pressure Monitoring System Schematics Connector End View Reference: Component Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Is there any wiring harness damage (open or ground) or poor connection of connector? | Go to Step 3 | Go to Step 4 |
3 | Repair the wiring harness. Is the repair complete? | Go to Step 5 | -- |
4 |
Is the repair complete? | Go to Step 5 | -- |
5 |
Does the DTC reset? | Go to Step 2 | System OK |