Dtc "C42" (P1650): Ig Switch Circuit Malfunction; Dtc "C44" (P0130/P0135): Ho2 Sensor (Ho2S) Circuit Malfunction - Suzuki GSX1300BK B-King Service Manual

1A-104 Engine General Information and Diagnosis:

DTC "C42" (P1650): IG Switch Circuit Malfunction

Detected Condition and Possible Cause
Detected Condition
Ignition switch signal is not input to the ECM.
When the ID agreement is not verified.
ECM does not receive communication signal from the
immobilizer antenna.
(For E-02, 19, 24)
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

Detected Condition and Possible Cause
Detected Condition
HO2 sensor output voltage is not input to
ECM during engine operation and running
C44/P0130
condition.
Sensor voltage > 1.0 V
The heater can not operate so that heater
C44/P0135 operation voltage is not supplied to the
oxygen heater circuit.
Wiring Diagram
ECM
29 E2
12 HO2S
41 Heater
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 18 18
B/Br
W/G
W
ECM coupler (Harness side)
24 25 26 27 28 29 30 31 32 33 34
Possible Cause
• Ignition system circuit open or short.
• ECM malfunction.
• Immobilizer system malfunction.
(For E-02, 19, 24)
Possible Cause
• HO2 sensor circuit is open or shorted to the power
source.
• Heated circuit is open or shorted to the ground.
• Battery voltage is not supply to the HO2 sensor.
Engine stop Side-stand
switch relay
O/W
To Side-stand
switch
HO2 sensor
35 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
52 52 52 53 54 55 56 57 58 59 60 61 62 63
B823H11104025
B823H11104026
Ignition
switch
I823H1110151-02
64 65 66 67 68 68 68
I823H1110004-01