P04AA Cadillac Vizon OBD Code

OBD/2 P04AA error code description and symptoms.

EGR Flow Insufficient Detected The EGR system is monitored during steady state driving conditions while the EGR is commanded on.
The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum. Vacuum supply EGR valve stuck closed EGR valve leaks vacuum EGR flow path restricted EGRVR circuit shorted to PWR VREF open to D.P.F. EGR sensor D.P.F. EGR sensor downstream hose off or plugged EGRVR circuit open to PCM VPWR open to EGRVR solenoid D.P.F. EGR sensor hoses both off D.P.F. EGR sensor hoses reversed Damaged EGR orifice tube Damaged EGRVR solenoid Damaged PCM Perform KOER self-test and look for DTC P04AA as an indication of a hard fault.

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

P04AA Cadillac Vizon Error Code Repair Process :

If your split air #2 circuit malfunction check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P04AA and engine control unit are in charge of monitoring a bunch of different split air #2 circuit malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Cadillac Vizon P04AA OBD2 Code

A common cause of code P04AA is the failure of Split Air #2 Circuit Malfunction, but there are several other possible causes as well, such as ;

Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Camshaft Position Sensor harness is open or shorted
Camshaft advance mechanism binding (VCT unit)
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1

P04AA is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P04AA Cadillac Vizon OBD Code

P04AA Cadillac Vizon Error Code Repair Process :

Common Causes of Cadillac Vizon P04AA OBD2 Code

P04AA code for other Cadillac cars