IGNITION SIGNAL - Component Description
EF & EC-7228prose procedureComponent Description
IGNITION COIL
The ignition signal from the ECM is sent to and amplified by the power transistor bu[i]lt into ECM. The power transistor turns on and off the ignition coil primary circuit. This on-off operation induces the proper high voltage in the coil secondary circuit.
CONSULT-II Reference Value in Data Monitor Mode
Specification data are reference values.
IGNITION SW
CONDITIONIgnition switch: ON → OFF → ON
SPECIFICATIONON → OFF → ON
ECM Terminals and Reference Value
Specification data are reference values and are measured between each terminal and ground.
51
WIRE COLORY
ITEMIgnition signal (No. 1)
CONDITION[Engine is running] Warm-up condition; Idle speed
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF168A
24
WIRE COLORG
ITEMIgnition signal (No. 2)
CONDITION[Engine is running] Warm-up condition; Idle speed
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF168A
25
WIRE COLORW
ITEMIgnition signal (No. 3)
CONDITION[Engine is running] Warm-up condition; Idle speed
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF168A
52
WIRE COLORL
ITEMIgnition signal (No. 4)
CONDITION[Engine is running] Warm-up condition; Idle speed
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF168A
51
WIRE COLORY
ITEMIgnition signal (No. 1)
CONDITION[Engine is running] Engine speed is 2,000 rpm
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF169A
24
WIRE COLORG
ITEMIgnition signal (No. 2)
CONDITION[Engine is running] Engine speed is 2,000 rpm
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF169A
25
WIRE COLORW
ITEMIgnition signal (No. 3)
CONDITION[Engine is running] Engine speed is 2,000 rpm
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF169A
52
WIRE COLORL
ITEMIgnition signal (No. 4)
CONDITION[Engine is running] Engine speed is 2,000 rpm
DATA (DC Voltage)BATTERY VOLTAGE (11 - 14V) - see waveform NEF169A