C1016
C1016-88-TPM SYSTEM DEACTIVATED-WINTER MODE
For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
NOTE: When this DTC is active the TPM Module will enter a deactivation mode (Winter Mode) and the TPM system becomes deactivated. If winter tires and wheel assemblies are installed no repair is required.
The Tire Pressure Monitor (TPM) Module determines the TPM Sensor positions by performing the vehicle Tire Pressure Monitoring (TPM) Sensor locate procedure. This procedure is run after the vehicle has been stationary for 20 minutes. After driving the vehicle at speeds greater than 20 km/h (13 mph) for a minimum of 10 minutes without the TPM Sensor installed, the TPM Module sends a bus message commanding the TPM telltale lamp to flash for 75 seconds. After the 75 seconds of flashing, the lamp will remain on solid and a chime will be heard. The message center will display SERVICE TPM SYSTEM for five seconds and shut off, all while the tire pressure values will be displayed as dashes. After the ignition has been cycled off and on the TPM telltale lamp will remain off, the message center will no longer display SERVICE TPM SYSTEM, and the tire pressures continue to be displayed as dashes.
- When Monitored:
During vehicle TPM Sensor locate process.
- Set Condition:
For BUX/Canada vehicles only where all four TPM Sensors fail the locate processes at the same time because the TPM sensors are not installed on winter tire and wheel assemblies.
NOTE: Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.
1. DTC STATUS IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, read and record the TPM Module DTCs.
3. With the scan tool, erase stored TPM Module DTCs.
4. Drive the vehicle at speeds greater than 20 km/h (13 mph) for 10 minutes.
5. With the scan tool, read DTCs in the TPM Module.
Is this DTC Active at this time?
Yes
- Go To 2
No
- Go To 4
2. TIRE PRESSURE MONITORING (TPM) WINTER MODE
NOTE: Repair all other TPM Module DTCs before continuing with this test procedure.
1. Turn the ignition off.
2. Cycle the ignition from off to on.
3. Check for the following conditions:
- The telltale lamp is off.
- The tire pressure values in the Instrument Cluster are displayed as dashes.
- The message center is not displaying "SERVICE TPM SYSTEM".
Are all of the above conditions correct?
Yes
- The Tire Pressure Monitoring (TPM) Module is now in deactivation mode (Winter Mode). This DTC will remain active until the correct tire and wheel assemblies are installed back on the vehicle. Once one of the correct tire and wheel assemblies are reinstalled, the other three must also be reinstalled prior to turning the ignition on.
No
- Go To 3
3. TIRE PRESSURE MONITORING (TPM) SENSORS
NOTE:
1. Turn the ignition off.
2. Verify the correct TPM Sensors are installed in all of the tire and wheel assemblies.
Are the correct TPM Sensors installed?
Yes
- Install a new Tire Pressure Monitoring (TPM) Module. Tire Pressure Monitoring (TPM) Module - Removal.
- Perform the TPM VERIFICATION TEST. TPM Verification.
No
- Install all new Tire Pressure Monitoring (TPM) Sensors. Tire Pressure Monitoring (TPM) Sensor - Removal.
- Perform the TPM VERIFICATION TEST. TPM Verification.
4. INTERMITTENT TIRE PRESSURE MONITORING (TPM) SENSOR DTC
1. The conditions necessary to set this DTC are not present at this time.
2. Perform any Technical Service Bulletins that may apply to this condition.
3. With the scan tool, clear DTCs in the Tire Pressure Monitoring (TPM) Module.
4. Test drive the vehicle for a minimum of 10 minutes with vehicle speed greater than 20 km/h (13 mph).
5. With the scan tool, select View DTCs in the Tire Pressure Monitoring (TPM) Module.
Does the DTC reset or is the status Active for this DTC?
Yes
- Install a new Tire Pressure Monitoring (TPM) Module. Tire Pressure Monitoring (TPM) Module - Removal.
- Perform the TPM VERIFICATION TEST. TPM Verification.
No
- Test complete.
- Perform the TPM VERIFICATION TEST. TPM Verification.