Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUZUKI2009EQUATOR SPORT, 4D PICKUP, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM (VQ40DE) - (5 OF 5)ENGINE CONTROL SYSTEM SYMPTOMS: SYMPTOM MATRIX CHARTSYSTEM - BASIC ENGINE CONTROL SYSTEM
2009 Suzuki Equator Sport, 4D Pickup, RWD
System - Basic Engine Control System
2009 Suzuki Equator Sport, 4D Pickup, RWDSECTION System - Basic Engine Control System
SYMPTOM MATRIX CHART
| SYMPTOM | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [A] | [B] | [C] | [D] | [E] | [F] | [G] | [H] | [I] | [J] | [K] | [L] | [M] | ||
| Warranty symptom code | AA | AB | AC | AD | AE | AF | AG | AH | AJ | AK | AL | AM | HA | |
| Fuel | Fuel pump circuit | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 3 | 2 | ||||
| Fuel pressure regulator system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | ||||
| Fuel injector circuit | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | ||||||
| Evaporative emission system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | ||||
| Air | Positive crankcase ventilation system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | ||
| Incorrect idle speed adjustment | 1 | 1 | 1 | 1 | 1 | |||||||||
| Electric throttle control actuator | 1 | 1 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | |||
| Ignition | Incorrect ignition timing adjustment | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | |||||
| Ignition circuit | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | ||||||
| Power supply and ground circuit | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | |||||
| Mass air flow sensor circuit | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | ||||||
| Engine coolant temperature sensor circuit | 3 | 3 | 3 | |||||||||||
| Air fuel ratio (A/F) sensor 1 | ||||||||||||||
| Throttle position sensor circuit | 2 | 2 | ||||||||||||
| Accelerator pedal position sensor circuit | 3 | 2 | 1 | |||||||||||
| Knock sensor circuit | 2 | 3 | ||||||||||||
| Crankshaft position sensor (POS) circuit | 2 | 2 | ||||||||||||
| Camshaft position sensor (PHASE) circuit | 3 | 2 | ||||||||||||
| Vehicle speed signal circuit | 2 | 3 | 3 | 3 | ||||||||||
| Power steering pressure sensor circuit | 2 | 3 | 3 | |||||||||||
| ECM | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | |||
| Intake valve timing control solenoid valve circuit | 3 | 2 | 1 | 3 | 2 | 2 | 3 | 3 | ||||||
| PNP switch circuit | 3 | 3 | 3 | 3 | 3 | |||||||||
| VIAS control solenoid valve circuit | 1 | |||||||||||||
| Refrigerant pressure sensor circuit | 2 | 3 | 3 | 4 | ||||||||||
| Electrical load signal circuit | 3 | |||||||||||||
| Air conditioner circuit | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | |||
| ABS actuator and electric unit (control unit) | 4 | |||||||||||||
| 1 - 6: The numbers refer to the order of inspection. (continued on next page) [A]: HARD/NO START/RESTART (EXCP. HA) [B]: ENGINE STALL [C]: HESITATION/SURGING/FLAT SPOT [D]: SPARK KNOCK/DETONATION [E]: LACK OF POWER/POOR ACCELERATION [F]: HIGH IDLE/LOW IDLE [G]: ROUGH IDLE/HUNTING [H]: IDLING VIBRATION [I]: SLOW/NO RETURN TO IDLE [J]: OVERHEATS/WATER TEMPERATURE HIGH [K]: EXCESSIVE FUEL CONSUMPTION [L]: EXCESSIVE OIL CONSUMPTION [M]: BATTERY DEAD (UNDER CHARGE) |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.