
2007 Buick Rendezvous CXL 3.5L MIL Lamp on
Vehicle has DTC P0446 (EVAP Vent Performance). Verified the wiring is good. I can not get the ECM to apply the ground for the vent valve. ECM is new and has the latest calibration, which is specifically for this DTC (p0446). ACDelco TDS help desk is unable...
FIX posted 12/20/2023
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Message Closed
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VIN | 3G5DA03L77 |
Engine | 3.5 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / EFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0446 | EVAP Vent Control System Performance |
Message Closed
Vehicle Data
2007 Buick Rendezvous CXL
VIN | 3G5DA03L77 |
Engine | 3.5 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / EFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0446 | EVAP Vent Control System Performance |