Circuit/System Verification
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
- If there are other DTCs set besides DTC P2178, P2180, P2188, or P2190, refer to DIAGNOSTIC TROUBLE CODE (DTC) LIST - VEHICLE DIAGNOSTIC INFORMATION to diagnosis the applicable DTC.
- Ignition ON, observe the barometric pressure (BARO) sensor pressure parameter and compare the reading on the scan tool to the barometric pressure table. Refer to ALTITUDE VERSUS BAROMETRIC PRESSURE .
- If the BARO sensor pressure is not within the range specified for your altitude, refer to DTC P2227, P2228, or P2229 .
- Engine at normal operating temperature, observe the Total Fuel Trim Avg. parameter with a scan tool. The Total Fuel Trim Avg. should be between -22 to +23 percent.