TROUBLE DIAGNOSIS — GENERAL DESCRIPTION; Symptom Matrix Chart (Cont'd) — sensor and switch circuits
EF & EC-7057spec tableSymptom Matrix Chart (Cont'd)
CG10, CGA3
Symptom Matrix Chart (continued)
Crankshaft position sensor (POS) circuit
AA — HARD/NO START/RESTART (EXCP. HA)2
AB — ENGINE STALL2
AC — HESITATION/SURGING/FLAT SPOT
AD — SPARK KNOCK/DETONATION
AE — LACK OF POWER/POOR ACCELERATION
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING
AH — IDLING VIBRATION
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7176
Camshaft position sensor (PHASE) circuit
AA — HARD/NO START/RESTART (EXCP. HA)3
AB — ENGINE STALL2
AC — HESITATION/SURGING/FLAT SPOT
AD — SPARK KNOCK/DETONATION
AE — LACK OF POWER/POOR ACCELERATION
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING
AH — IDLING VIBRATION
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION3
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7181
Mass air flow sensor circuit
AA — HARD/NO START/RESTART (EXCP. HA)1
AB — ENGINE STALL1
AC — HESITATION/SURGING/FLAT SPOT2
AD — SPARK KNOCK/DETONATION2
AE — LACK OF POWER/POOR ACCELERATION2
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING2
AH — IDLING VIBRATION2
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION2
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7076
Heated oxygen sensor 1 (front) circuit
AA — HARD/NO START/RESTART (EXCP. HA)
AB — ENGINE STALL1
AC — HESITATION/SURGING/FLAT SPOT2
AD — SPARK KNOCK/DETONATION3
AE — LACK OF POWER/POOR ACCELERATION2
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING2
AH — IDLING VIBRATION2
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION2
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7100
Engine coolant temperature sensor circuit
AA — HARD/NO START/RESTART (EXCP. HA)1
AB — ENGINE STALL1
AC — HESITATION/SURGING/FLAT SPOT2
AD — SPARK KNOCK/DETONATION3
AE — LACK OF POWER/POOR ACCELERATION2
AF — HIGH IDLE/LOW IDLE2
AG — ROUGH IDLE/HUNTING2
AH — IDLING VIBRATION2
AJ — SLOW/NO RETURN TO IDLE3
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION2
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7086
Throttle position sensor circuit
AA — HARD/NO START/RESTART (EXCP. HA)
AB — ENGINE STALL1
AC — HESITATION/SURGING/FLAT SPOT2
AD — SPARK KNOCK/DETONATION
AE — LACK OF POWER/POOR ACCELERATION2
AF — HIGH IDLE/LOW IDLE2
AG — ROUGH IDLE/HUNTING2
AH — IDLING VIBRATION2
AJ — SLOW/NO RETURN TO IDLE2
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION2
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7090
Vehicle speed sensor circuit
AA — HARD/NO START/RESTART (EXCP. HA)
AB — ENGINE STALL2
AC — HESITATION/SURGING/FLAT SPOT3
AD — SPARK KNOCK/DETONATION
AE — LACK OF POWER/POOR ACCELERATION3
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING
AH — IDLING VIBRATION
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION3
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7196
ECM
AA — HARD/NO START/RESTART (EXCP. HA)2
AB — ENGINE STALL2
AC — HESITATION/SURGING/FLAT SPOT3
AD — SPARK KNOCK/DETONATION3
AE — LACK OF POWER/POOR ACCELERATION3
AF — HIGH IDLE/LOW IDLE3
AG — ROUGH IDLE/HUNTING3
AH — IDLING VIBRATION3
AJ — SLOW/NO RETURN TO IDLE3
AK — OVERHEATS/WATER TEMPERATURE HIGH3
AL — EXCESSIVE FUEL CONSUMPTION3
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7208, 7210
Start signal circuit
AA — HARD/NO START/RESTART (EXCP. HA)2
AB — ENGINE STALL
AC — HESITATION/SURGING/FLAT SPOT
AD — SPARK KNOCK/DETONATION
AE — LACK OF POWER/POOR ACCELERATION
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING
AH — IDLING VIBRATION
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7233
PNP switch position circuit
AA — HARD/NO START/RESTART (EXCP. HA)
AB — ENGINE STALL
AC — HESITATION/SURGING/FLAT SPOT
AD — SPARK KNOCK/DETONATION3
AE — LACK OF POWER/POOR ACCELERATION
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING3
AH — IDLING VIBRATION3
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7214
Power steering oil pressure switch circuit
AA — HARD/NO START/RESTART (EXCP. HA)
AB — ENGINE STALL2
AC — HESITATION/SURGING/FLAT SPOT
AD — SPARK KNOCK/DETONATION
AE — LACK OF POWER/POOR ACCELERATION
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING3
AH — IDLING VIBRATION3
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7241
Electrical load signal circuit
AA — HARD/NO START/RESTART (EXCP. HA)
AB — ENGINE STALL
AC — HESITATION/SURGING/FLAT SPOT
AD — SPARK KNOCK/DETONATION
AE — LACK OF POWER/POOR ACCELERATION
AF — HIGH IDLE/LOW IDLE
AG — ROUGH IDLE/HUNTING3
AH — IDLING VIBRATION3
AJ — SLOW/NO RETURN TO IDLE
AK — OVERHEATS/WATER TEMPERATURE HIGH
AL — EXCESSIVE FUEL CONSUMPTION
AM — EXCESSIVE OIL CONSUMPTION
HA — BATTERY DEAD (UNDER CHARGE)
Reference pageEC-7245
NOTE
Warranty symptom codes header repeats: AA / AB / AC / AD / AE / AF / AG / AH / AJ / AK / AL / AM / HA.
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
See also
EC-7076 · EC-7086 · EC-7090 · EC-7100 · EC-7176 · EC-7181 · EC-7196 · EC-7208 · EC-7210 · EC-7214 · EC-7233 · EC-7241 · EC-7245