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DIAGNOSTICS
ECD SYSTEM (1ND -- TV)
05 -- 11
COROLLA Supplement (RM1129E)
Symptom See P age
Suspect Area
Engine stalls (Other than the condition listed above)
1. EC
power source circuit
2. Injector
3. EC
4. Supply pump
5. Fuel pressure sensor
6. Intake shutter (throttle valve)
7. Pressure control valve
8. Ignition switch
9. Alternator
10.Crankshaft position sensor
Abnormal initial idling (Poor idling)
1. Fuel filter
2. Injector
3. EC
4. Supply pump
5. Fuel pressure sensor
6. Pressure control valve
7. Engine coolant temperature sensor
8. Fuel temperature sensor
High engine idling speed (Poor idling)
1. A/C signal circuit
2. Injector
3. STA signal circuit
4. EC
5. Supply pump
6. Fuel pressure sensor
7. Pressure control valve
8. Engine coolant temperature sensor
9. Fuel temperature sensor
Low engine idling speed (Poor idling)
1. A/C signal circuit
2. Injector
3. EGR system
4. Compression
5. Valve clearance
6. Fuel line (Air bleeding)
7. EC
8. Supply pump
9. Fuel pressure sensor
10.Intake shutter (throttle valve)
11.Pressure control valve
12.Engine coolant temperature sensor
13.Fuel temperature sensor
Rough idling (Poor idling)
1. Injector
2. Fuel line (Air bleeding)
3. EGR system
4. Compression
5. Valve clearance
6. EC
7. Supply pump
8. Fuel pressure sensor
9. Intake shutter (throttle valve)
10.Pressure control valve
11.Engine coolant temperature sensor
12.Fuel temperature sensor
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E