Engine General Information and Diagnosis: Bi-Fuel LPG model 1A-70
Reference waveform
NOTE
• Waveform analysis is as follows.
• Waveform might change for measurement
condition and vehicle spec.
Fuel injector signal
Fuel injector signal (1):
Measurement condition
• Engine: Idle speed after warming up
• Fuel select mode: Petrol MODE
Measurement condition
• Engine: Idle speed after warming up
• Fuel select mode: Forced LPG MODE
Fuel injector No.1 signal and ignition coil No.1 signal
Fuel injector No.1 signal (1):
E01-19
WHT/GRN
A/C SW input signal
circuit
10 – 14 V
Ignition switch: ON
A/C switch: OFF
Blower speed selector: OFF
2 V or less
Ignition switch: ON
A/C switch: ON
Blower speed selector: 1st
position or higher
E01-20
GRN/WHT
Brake light switch
signal circuit
0 – 1 V
Ignition switch: ON
Brake pedal: Not depressed
10 – 14 V
Ignition switch: ON
Brake pedal: Fully
depressed position
E01-21
—
—
—
—
E01-22*
RED
CAN (high)
communication circuit
2.5 – 3.5 V
Ignition switch: ON
E01-23
—
—
—
—
E01-24
ORN
A/C evaporator outlet
air temp. sensor
ground circuit
Below 0.3 V
Ignition switch: ON
E01-25
—
—
—
—
E01-26*
WHT
CAN (low)
communication circuit
1.5 – 2.5 V
Ignition switch: ON
Terminal No.
Wire color
Circuit
Normal voltage
Condition
[A]: Waveform of channel 1
[C]: VOLT/DIV of each channel
[B]: Ground level of each channel
[D]: TIME/DIV
Channel
Probe
Terminal No.
1
+
C01-2 (No.1)
C01-1 (No.2)
C01-14 (No.3)
–
C01-8
I8T401111066-01
Channel
Probe
Terminal No.
1
+
C01-2
–
C01-8
I7V20A111014-02
I9R90A112017-01
Содержание Wagon R
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