SYSTEM Ð Engine control systemMalfunction
SYMPTOM
Reference page
Feature of symptomCheck point
HARD/NO START/
RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT SPARK KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE) Malfunction indicator lamp illuminates.
Can be detected by CONSULT-II?
Fuel cut NO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATINGBLACK SMOKE
WHITE SMOKE
New CT/CS
AAAB AC AD AE AF AG AH AJ AK AL AM AP HA
Start signal circuit open, shortqq EC-472 Start control does not function.
Air conditioner switch circuit open, ground short
EC-463Air Conditioner does not stop
operating.
short Air Conditioner does not work.
Ignition switch circuit open q qqq
EC-472
short Engine does not stop.
Power supply for ECM circuit open qqq
EC-375
short qq
Throttle control solenoid valve circuit open, short EC-458Does not operate.
ground short qq q Does not stop operating.
EGRC-solenoid valve A, B circuit open, short EC-454
ground short qDoes not stop operating.
Glow relay circuit open qqqq q
EC-412Glow lamp does not turn on.
short Glow lamp does not turn off.
ECM relay (Self-shut off) circuit open qqq q
EC-469
short qqGround short makes engine
unable to stop.
Air conditioner relay circuit open EC-463Air conditioner does not operate.
short Air conditioner does not stop
operating.
ECM, Connector circuit open, short qqqqqqqqqqqqqq qqqqqqqqqqq EC-369, 475
TROUBLE DIAGNOSESTD27Ti
Symptom Matrix Chart (Cont'd)
EC-365
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