DTC Troubleshooting

DTC DIAGNOSTIC TROUBLESHOOTING CHART

Step	Action	YES	NO
1	Was "Engine and Emission Control System Check" performed?	Go to Step 2	Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2	Do you have SUZUKI scan tool?	Go to Step 3.	Go to Step 4.
3	Barometric pressure check Connect SUZUKI scan tool to DLC with ignition switch turned OFF. Check barometric pressure value displayed on SUZUKI scan tool. Is 60 - 110 kPa indicated?	Intermittent trouble or faulty ECM. Check for intermittent trouble referring to INTERMITTENT AND POOR CONNECTION INSPECTION .	Go to Step 5.
4	Barometric pressure (EVAP leak check pressure) sensor signal check Remove ECM cover. Check for proper connection to ECM coupler at "51-3-5", "C51-3-1" and "C51-3-10" terminals. Measure voltage between "C51-3-1" terminal of ECM coupler and vehicle body ground with ignition switch turned ON. Is voltage 1.35 - 4.24 V?	Intermittent trouble or faulty ECM. Check for intermittent trouble referring to INTERMITTENT AND POOR CONNECTION INSPECTION .	Go to Step 5.
5	Barometric pressure (EVAP leak check pressure) sensor check Check EVAP leak check pressure sensor signal voltage referring to "EVAP LEAK CHECK PRESSURE SENSOR (COMBINE WITH BARO SENSOR) CHECK " under EVAP LEAK CHECK MODULE INSPECTION . Is signal voltage within specified value?	Go to Step 6.	Replace EVAP leak check module.
6	EVAP system check Check the following parts for clog. EVAP canister EVAP canister air suction filter EVAP system passage EVAP canister vent valve in EVAP leak check module Is it in good condition?	"GRY" wire, "BRN/RED" wire or "BRN/WHT" wire is open or short. If wire and connections are OK, substitute a known-good ECM and recheck.	Clean, repair or replace.