Buick Regal: Tire Pressure Rolling Count Procedure
Introduction
The Tire Pressure Rolling Count parameter for each sensor can be used to help
confirm if the sensor transmissions
are being received. As the vehicle is being driven, the Tire Pressure Rolling
Count increments with every received
TPM sensor transmission. If a suspected Sensor is not incrementing, incrementing
very slowly compared to others or
not at all, that could be a result of interference from aftermarket devices. The
sensor transmission success rate (the
rate at which each sensors transmission is being received by the RCDLR) can be
verified in the scan tool.
NOTE: Scan tool procedure will be used if Tire Pressure Sensor exhibits
"no Signal or poor
intermittent signal reception" Before proceeding, check for the following:
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic
procedure.
- A sensor does not transmit or transmits invalid data to the RCDLR.
- A sensor might exhibit low battery condition.
- If equipped, the driver information center displays " dashes" for the
suspected sensor.
- Aftermarket wheel valve system locations can cause a sensor to not
function correctly.
- A sensor may have been damaged due to a previous wheel/tire service or
flat tire event.
- The use of other than GM approved tire sealants can obstruct the sensor
pressure sensing port and cause
inaccurate tire pressure readings. If this condition is verified, remove the
sealer from the tire and replace the
sensor. Refer to Tire Pressure Indicator Sensor Replacement
- Occasionally sensor transmissions are not received by the RCDLR due to
vehicle level radio frequency
interference from items such as but not limited to aftermarket ignition
systems, DVD players, CB radios, or
metallic type window tinting
How to determine if Sensor Signal is poor or has no signal
Use Scan Tool and follow on screen instructions:
- Select Module Diagnosis
- Select Body Control Module
- Select Configuration/Reset Functions
- Select Tire Pressure Sensor Signal Reset
- The Tire Pressure Sensor Rolling Count parameters will be displayed
If the Tire Pressure Sensor Rolling Count parameter is below 50% on one or
more tires
NOTE: When moving the tire pressure sensor to a different location on
the vehicle, keep
the tire pressure sensor with the original tire it is installed in.
- Move the appropriate tire to a different location on the vehicle and
verify the Tire Pressure Sensor Rolling Count has increased. Refer to Tire
and Wheel Removal and Installation.
- If Tire Pressure Sensor Rolling Count parameter does not increase after
moving tire to different location,
replace the appropriate B2 Tire Pressure Sensor and perform the Tire
Pressure Indicator Sensor Learn.
- If Tire Pressure Sensor Rolling Count parameter does increase after
moving tire to different location, check for
any aftermarket devices that could be causing interference to the tire
pressure sensor signal. Unplug the device
and re-run test.
If the Tire Pressure Sensor Rolling Count parameter is above 50% on one or
more tires (Follow normal TPM
troubleshooting in Service information)
1. Verify if all 4 tire monitor pressure sensor DTCs are not set.
2. If 2 or more tire monitor pressure sensor DTCs are set, test the keyless
entry antenna for proper operation, or if antenna is properly seated. Refer to
Keyless Entry System Malfunction (Active) Keyless Entry System Malfunction
(Passive).
3. Perform the Tire Pressure Indicator Sensor Learn.
4. Verify the scan tool Tire Pressure Sensor Mode parameters change to Drive
while driving the vehicle above 40
km/h (25 mph) for greater than 2 min.
5. If a Tire Pressure Sensor Mode parameter does not change to Drive.
6. Replace the appropriate B2 Tire Pressure Sensor.
7. Perform the Tire Pressure Indicator Sensor Learn.
8. If the Tire Pressure Sensor Mode parameter changes to Drive.
9. All OK.
READ NEXT:
Tire Pressure Indicator Sensor Replacement
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the
Vehicle.
2. Remove the tire and wheel assembly.
3. Dismount th
TIRE PRESSURE MONITOR DESCRIPTION AND OPERATION
WL - Wireless
WL - Wireless
WL - Wireless
WL - Wireless
P16 - P16 Instrument Cluster
P9 - P9 Driver Information Center Display
K9 - K9 Body Control Mod
SEE MORE:
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
Circuit/System De
All seating positions in the vehicle
have a lap-shoulder belt.
The following instructions explain
how to wear a lap-shoulder belt
properly.
1. Adjust the seat, if the seat is
adjustable, so you can sit up
straight. To see how, see
"Seats" in the Index.
2. Pick up the latch plate and pull
the belt