1A-104 Engine General Information and Diagnosis:
DTC “C42” (P1650): IG Switch Circuit Malfunction
B823H11104025
Detected Condition and Possible Cause
Troubleshooting
NOTE
• Refer to “Ignition Switch Inspection in Section 9C (Page 9C-9)” for details.
• After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures (Page 1A-14)”.
DTC “C44” (P0130/P0135): HO2 Sensor (HO2S) Circuit Malfunction
B823H11104026
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
Detected Condition Possible Cause
Ignition switch signal is not input to the ECM. • Ignition system circuit open or short.
• ECM malfunction.
When the ID agreement is not verified.
ECM does not receive communication signal from the
immobilizer antenna.
(For E-02, 19, 24)
• Immobilizer system malfunction.
(For E-02, 19, 24)
Detected Condition Possible Cause
C44/P0130
HO2 sensor output voltage is not input to
ECM during engine operation and running
condition.
Sensor voltage > 1.0 V
• HO2 sensor circuit is open or shorted to the power
source.
C44/P0135
The heater can not operate so that heater
operation voltage is not supplied to the
oxygen heater circuit.
• Heated circuit is open or shorted to the ground.
• Battery voltage is not supply to the HO2 sensor.
ECM
Side-stand
relay
Ignition
switch
Engine stop
switch
O/W
W
Gr
B
W
B/Br
W/G
W
HO2 sensor
HO2S
Heater
E2
To Side-stand
switch
12
41
29
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