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There is no chime module ,there is a speaker inside the instrument cluster. Door Ajar Chime
The door ajar chime feature is controlled by the smart junction box (SJB). The driver and passenger door ajar switches, and the liftgate are hardwired to the SJB. If any door or liftgate is sensed as being open, and the ignition switch is in RUN/START position, the SJB will process the input and sends a chime request to the instrument cluster over the controller area network (CAN).
Safety Belt Warning Chime
The safety belt chime feature is controlled by the restraints control module (RCM). The driver safety belt switch is hardwired to the RCM. The RCM communicates with the instrument cluster over a hardwire connection. If at any time during the first 6 seconds after the ignition switch is placed in RUN the driver safety belt is sensed as being unfastened, the RCM will process the input, and in turn, sends a chime request to the instrument cluster.
Have the vehicle checked for DTC'S - diagnostic trouble codes ,not OBD 2 codes , the check engine light has nothing to do with this .
Instrument Cluster Diagnostic Trouble Code (DTC) Index
Instrument Cluster is Defective
INSTALL a new instrument cluster. REFER to Section 413-01 .
Ignition Key-In Circuit Failure
Go To Pinpoint Test B .
Module Configuration Failure
REFER to Section 413-01 .
For a complete list of instrument cluster DTCs, refer to Section 419-10 .
Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index
SJB is Defective
INSTALL a new SJB. REFER to Section 419-10 .
Ignition Key-In Circuit Failure
Go To Pinpoint Test B .
Lamp Park Input Circuit Short to Battery
Go To Pinpoint Test E .
Park Brake Actuator Assembly Switch Released Circuit Short to Ground
Go To Pinpoint Test F .
Your best bet is to have a qualified repair shop diagnose this problem ,what ever it is .
Have the vehicle
Have you had vehicle check for DTC'S diagnostic trouble codes . Check fuse's an relays , find wiring diagrams to see what controls these systems ?
Radio/Battery fuse , fuse G 10 amp located in the right instrument panel fuse box . Do you know where this ?
Fuse Block - Right IP - On the right side of the instrument panel
An there is one on the other end of the instrument panel ,driver side .
Fuse Block - Left IP- On the left side of the instrument panel The fuel an temp . gauges not working is probably the step motors inside instrument cluster . GM had problem with this 03 to 06 . How to repair GM Instrument Cluster Speedometer Gauge Stepper
Daytime Running Lamps (DRL)
The ambient light sensor is a light sensitive transistor that varies its voltage signal to the body control module (BCM) in response to changes to the outside (ambient) light level. When the BCM receives this signal it will either turn on the daytime running lights (DRL) or the headlights. Any function or condition that turns on the headlights will cancel the daytime running lamps operation. With the headlight switch in the OFF position, the headlights will either be turned ON or OFF, after an approximate 30 second delay depending on whether daylight or low light conditions are sensed. The HTR A/C IGN fuse in the underhood junction block supplies ignition positive voltage to the daytime running lamp (DRL) relay coil circuit. The DRL relay switch contacts are connected to the low beam circuit. When the headlamp switch is placed in the OFF position, the BCM will either turn on or off the daytime running lamps, depending on whether daylight or low light conditions are sensed. The BCM energizes the DRL relay, closing the switch contacts and grounding the low beam circuit. Ground is provided at G101. The DRL illuminate the low beam headlights at a reduced intensity. The DRL will operate when the ignition switch is in the ON position, the gear selector is not in the PARK position and the parking brake is released. When these conditions have been met and the ambient light sensor indicates daytime conditions, the DRL will illuminate.
DRL operation in Manual Transmission equipped vehicles will occur when the ignition switch is in the ON position, and the parking brake is released. - check fuse's an relay first.
Door Lock System Components
The power door lock system consists of the following components:
Driver door lock switch
Front Passenger door lock switch
Body Control Module (BCM)
Relays: Driver Door Unlock--if equipped, Door Unlock, and Door Lock
The liftgate can be opened by operating the switch on the instrument panel. Battery voltage is supplied to the liftgate actuator through the body control module (BCM). The BCM will pulse the liftgate actuator when a release input is received through the key fob, or the instrument panel switch.
Not sure what your talking about . There is no sensor. there is a relay in the I/P fuse box LIFTGATE PCB relay . an a lift gate actuator motor inside the door . An there is a door ajar switch ,which is part of the latch mechanism. Do you have light lit on the instrument cluster - a picture of a little car with a door open , an maybe a chime sounding ?
Its probably the gage itself. A quick stop by a Dealership and they can check the instrument cluster gage by gage. For free maybe! If not the gage, could be the engine temperature sensor.
As long as the engine is NOT overheating, you can still drive it.
It stay on and shuts off when it see a door open signal it should remain on when the ignition is switch off for approximately 5 minutes without a door signal when it sees a door switch signal then it shuts off this is normal on alot of GM product