GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Aveo 🢒 DTC 🢒 DTC C0550

Circuit Description

TPMS Receiver Module receives the vehicle speed signal from the vehicle speed sensor (VSS) and also receives the information of the tire inflation pressure from the transmitters and the transmitter’s condition. With this information, the TPMS decides that the warning lamp indication is needed or not.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C0550 Input Failure Of Vehicle Speed

Conditions for Running the DTC

Vehicle speed is above 32 km/h (20 mph).

Conditions for Setting the DTC
    • TCM inoperative
    • Wiring harness damage between TPMS receiver module and TCM
    • One of the tire pressure sensors is remaining in Drive mode after the vehicle is parked.

Action Taken When the DTC Sets

TPMS warning lamp blinks for 75 seconds.

Conditions for Clearing the DTC

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

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Verify speedometer operation.

Does the speedometer operate normal?

Go to Step 3

Refer to DTC P0502

3
  1. Using the scan tool, verify the vehicle speed signal in the Tire Pressure Monitor Data Display list.
  2. Check the wiring harness between the terminal 2 of TPMS Receiver Module and the terminal C2 14 (notchback) or terminal 2 (hatchback) of the cluster.

Is there any wiring harness damage (open or ground) or poor connection of connector?

Go to Step 4

Go to Step 5

4

Repair the wiring harness.

Is the repair complete?

Go to Step 6

--

5
  1. Replace the TPMS Receiver Module.
  2. Perform the TPS ID Registration procedure. Refer to Tire Pressure Monitor System Configuration.

Is the repair complete?

Go to Step 6

--

6
  1. Clear the DTCs with the scan tool.
  2. Operate the vehicle within the condition for running and setting the DTC.

Does the DTC reset?

Go to Step 2

System OK