System - Basic Engine Control System
| SYMPTOM | Reference | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HARD/NO START/RESTART (EXCP. HA) | ENGINE STALL | HESITATION/SURGING/FLAT SPOT | SPARK KNOCK/DETONATION | LACK OF POWER/POOR ACCELERATION | HIGH IDLE/LOW IDLE | ROUGH IDLE/HUNTING | IDLING VIBRATION | SLOW/NO RETURN TO IDLE | OVERHEATS/WATER TEMPERATURE HIGH | EXCESSIVE FUEL CONSUMPTION | EXCESSIVE OIL CONSUMPTION | BATTERY DEAD (UNDER CHARGE) | |||
| 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 | COMPONENT FUNCTION CHECK | ||||
| Fuel pressure regulator system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | WORK PROCEDURE | ||||
| Fuel injector circuit | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | COMPONENT FUNCTION CHECK | ||||||
| Evaporative emission system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | SYSTEM DESCRIPTION | ||||
| Air | Positive crankcase ventilation system | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | POSITIVE CRANKCASE VENTILATION (PCV) | ||
| Incorrect idle speed adjustment | 1 | 1 | 1 | 1 | 1 | WORK PROCEDURE | |||||||||
| Electric throttle control actuator | 1 | 1 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | DTC LOGIC , DTC LOGIC | |||
| Ignition | Incorrect ignition timing adjustment | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | WORK PROCEDURE | |||||
| Ignition circuit | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | COMPONENT FUNCTION CHECK | ||||||
| Power supply and ground circuit | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | DIAGNOSIS PROCEDURE | |||||
| Mass air flow sensor circuit | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | DTC LOGIC , DTC LOGIC | ||||||
| Engine coolant temperature sensor circuit | 3 | 3 | 3 | DTC LOGIC , DTC LOGIC | |||||||||||
| Air fuel ratio (A/F) sensor 1 circuit | DTC LOGIC , DTC LOGIC , DTC LOGIC , DTC LOGIC , DTC LOGIC | ||||||||||||||
| Throttle position sensor circuit | 2 | 2 | DTC LOGIC , DTC LOGIC , DTC LOGIC , DTC LOGIC , DTC LOGIC | ||||||||||||
| Accelerator pedal position sensor circuit | 3 | 2 | 1 | DTC LOGIC , DTC LOGIC , DTC LOGIC , DTC LOGIC | |||||||||||
| Knock sensor circuit | 2 | 3 | DTC LOGIC | ||||||||||||
| Engine oil temperature sensor | 4 | 2 | 3 | DTC LOGIC , DTC LOGIC | |||||||||||
| Crankshaft position sensor (POS) circuit | 2 | 2 | DTC LOGIC | ||||||||||||
| Camshaft position sensor (PHASE) circuit | 3 | 2 | DTC LOGIC | ||||||||||||
| Vehicle speed signal circuit | 2 | 3 | 3 | 3 | DTC LOGIC | ||||||||||
| 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 | DTC LOGIC | ||||||
| Intake valve timing intermediate lock control solenoid valve circuit | DIAGNOSIS PROCEDURE | ||||||||||||||
| Exhaust valve timing control solenoid valve | 3 | 2 | 1 | 3 | 2 | 2 | 3 | 3 | DIAGNOSIS PROCEDURE | ||||||
| PNP signal circuit | 3 | 3 | 3 | 3 | 3 | DTC LOGIC | |||||||||
| VIAS control solenoid valve 1 circuit | 1 | DTC LOGIC | |||||||||||||
| VIAS control solenoid valve 2 circuit | 1 | DTC LOGIC | |||||||||||||
| Refrigerant pressure sensor circuit | 2 | 3 | 3 | 4 | COMPONENT FUNCTION CHECK | ||||||||||
| Electrical load signal circuit | 3 | COMPONENT FUNCTION CHECK | |||||||||||||
| Air conditioner circuit | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | CONSULT FUNCTION (BCM - AIR CONDITIONER) (AUTO A/C) | |||
| ABS actuator and electric unit (control unit) | 4 | CONSULT FUNCTION | |||||||||||||
1 - 6: The numbers refer to the order of inspection.
(continued on next chart)