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Home >> Suzuki >> 2007 >> XL7 Luxury, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P2178, 2180, P2188, or P2190 >> Circuit/System Verification
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Circuit/System Verification

  1. 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.
  2. 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 .
  3. 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.
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