LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2006 >> Aerio Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P1422: Evaporative Emission System Leak Detect Pump Stuck OFF >> DTC Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Troubleshooting

DIAGNOSIS PROCEDURE

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  EVAP leak detecting pump check 
  1. Check EVAP leak detecting pump for operation referring to "EVAP Leak Detecting Pump Circuit Check" under EVAP LEAK CHECK MODULE INSPECTION (VEHICLE WITH ORVR SYSTEM) .

Is check result satisfactory? 		 Faulty "LT GRN" wire circuit or "BLK" wire circuit.
If wire and connections OK, substitute a known-good ECM and recheck.		 Replace EVAP leak check module.
scientia non olet · About LEMON Manuals