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DTC Troubleshooting

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
B1571: SYMPTOM TROUBLESHOOTING REFERENCE CHART

Step Action YES NO
1  Was "Air Conditioning System Check" performed?  Go to Step 2. Go to AIR CONDITIONING SYSTEM CHECK: AUTO A/C .
2  Scan tool data check 
  1. Connect scan tool to DLC with ignition switch turned OFF position.
  2. Ignition switch turned ON and select "Scan Tool Data" mode.
  3. Check "Meter Spec" displayed on scan tool.

Is value of combination meter spec signal within specified ranges displayed in "Scan Tool Data"? 		 Substitute a known-good HVAC control module and recheck. Go to step 3.
3  Scan tool data check 
  1. Check "Meter Spec" displayed on scan tool.

Is "-" displayed on scan tool data? 		 Check CAN communication circuit referring to DTC TABLE . Substitute a known-good BCM and recheck.
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