Suzuki GSX-R 1000 Service Manual: DTC “c42” (p1650): ig switch circuit malfunction

Suzuki GSX-R 1000 Service Manual / Engine / Engine general information and diagnosis / Diagnostic information and procedures / DTC “c42” (p1650): ig switch circuit malfunction

Detected condition and possible cause

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, 51)

Immobilizer system malfunction.

(For e-02, 19, 24, 51)

Troubleshooting

Note

refer to “ignition switch inspection” in section 9c for details.
After repairing the trouble, clear the dtc using sds tool. Refer to “use of sds diagnosis reset procedures” .

DTC “c41” (p2505): ecm power input signal malfunction

Detected condition and possible cause Detected condition Possible cause C41/P2505 No voltage is applied to the ecm. Lead wire/coupler connection of ecm t ...

DTC “c44” (p0130/p0135): ho2 sensor (ho2s) circuit malfunction

Detected condition and possible cause Detected condition Possible cause C44/P0130 Ho2 sensor output voltage is not input to ecm during engine operation and running ...

Other materials:

Fuel pump inspection
Turn the ignition switch on and check that the fuel pump operates for a few seconds. If the fuel pump motor does not make operating sound, inspect the fuel pump circuit connections or inspect the fuel pump relay and to sensor. Refer to “fuel pump relay inspection” and “dtc “c23” (p1651 ...

Thermostat removal and installation
Removal Drain a small amount of engine coolant. Refer to “cooling system inspection” in section 0b . Lift and support the fuel tank. Refer to “fuel tank removal and installation” in section 1g (page 1g- 9). Remove the thermostat cover (1). Remove the thermostat ( ...

Cam chain tension adjuster inspection
The cam chain tension adjuster is maintained to proper tension automatically. Remove the cam chain tension adjuster. Refer to “engine top side disassembly” . Holding the cam chain tension adjuster as shown in the figure, compress the plunger by turning the adjuster body unt ...