DTC C0775
Diagnostic Instructions
DTC Descriptor
| DTC C0775 00: Tire Pressure Monitoring System
Sensors Malfunction |
Circuit/System Description
If the body control module (BCM) has been reprogrammed or
replaced and the tire pressure sensor autolearn process has not
occured, the tire pressure monitor system indicator icon on the
instrument cluster will flash for 1 min. and then remain
illuminated after the ignition switch is cycled ON and the
instrument cluster bulb check is complete. If equipped, the driver
information center will also display a service tire monitor type
message. Under these circumstances, DTC C0775 will be set in the
BCM and the tire pressure sensor autolearn process will need to be
performed for the system to function correctly. The remote control
door lock receiver receives and sends the tire pressure and
temperature data to the body control module (BCM). The tire
pressure indicator module receives and sends sensor ID and location
data to the BCM. The tire pressure indicator module determines tire
side to side position by the rotating direction of the tires and
the front to rear position by the strength of the signals received.
To complete the tire pressure indicator module autolearn process it
is required that the vehicle be driven for at least 9 minutes above
40 km/h (25 MPH).
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
The body control module (BCM) has not received tire sensor ID
and location information from the tire pressure indicator
module.
Action Taken When the DTC Sets
| • |
The tire pressure monitor
system indicator icon on the instrument cluster will flash for 1
min. and then remain illuminated after the ignition switch is
cycled ON and the instrument cluster bulb check is complete.
|
| • |
If equipped, the driver
information center displays a service tire monitor type warning
message. |
Conditions for Clearing the DTC
A current DTC will clear when the BCM has received tire sensor
ID and location information from the tire pressure indicator module
and at least 1 ignition cycle has occurred.
Reference Information
Schematic Reference
Tire Pressure Monitoring System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Tire Pressure Monitor Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
| 1. |
Drive the vehicle for at least
9 minutes above 40 km/h (25 MPH). |
| 2. |
Verify DTC C0775 is not
set. |
⇒ If the DTC is
set
| |
2.1 |
Replace the K65 tire pressure
indicator module. |
| |
2.2 |
Drive the vehicle for at least
9 minutes above 40 km/h (25 MPH). |
| |
2.3 |
Verify DTC C0775 is not
set. |
| ⇒ |
If the DTC is set, replace the K9 BCM. |
⇓ If the DTC is not
set
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
Control Module References for tire pressure indicator module
and BCM replacement, programming, and setup.
|
