Suzuki GSX-R 1000 Service Manual: DTC “c62” (p0443): evap system purge control solenoid valve circuit malfunction (e-33 only)

Suzuki GSX-R 1000 Service Manual / Engine / Engine general information and diagnosis / Diagnostic information and procedures / DTC “c62” (p0443): evap system purge control solenoid valve circuit malfunction (e-33 only)

Detected condition and possible cause

Detected condition

Possible cause

Evap system purge control valve voltage is not input to ecm.

Evap system purge control valve circuit open or short.
Evap system purge control valve malfunction.
Ecm malfunction.

Wiring diagram

Suzuki GSX-R. Wiring diagram

Troubleshooting

Caution

when using the multi-circuit tester, do not strongly touch the terminal of the ecm coupler with a needle pointed tester probe to prevent terminal damage.

Note

after repairing the trouble, clear the dtc using sds tool. Refer to “use of sds diagnosis reset procedures” .

Step

Action

Yes

Turn the ignition switch off.
Lift and support the fuel tank. Refer to “fuel tank removal and installation” in section 1g .
Check the evap system purge control valve coupler (1) for loose or poor contacts.

If ok, then measure the evap system purge control valve resistance.

Disconnect the evap system purge control valve coupler.
Measure the resistance between terminals.

Special tool
(a): 09900–25008 (multi
circuit tester set)

Tester knob indication resistance (Ω)

Evap system purge control valve resistance approx. 32 Ω at 20 °c (68 °f) (terminal – terminal)

Is the resistance ok?

Go to step 2.

Replace the evap system purge control with a new one. Refer to “evaporative emission control system removal and installation (only for e- 33)” in section 1b .

Turn the ignition switch on.
Measure the voltage between the o/w wire and ground.

Special tool
(a): 09900–25008 (multi
circuit tester set)

Tester knob indication voltage ( )

Evap system purge control valve voltage battery voltage ((+) terminal: o/w – (–) terminal: ground)

Is the voltage ok?

Dbr wire open or shorted to ground, or poor “61” connection failure.
If wire and connection are ok, intermittent trouble or faulty ecm.
Recheck each terminal and wire harness for open circuit and poor connection.
Replace the ecm with a known good one, and inspect it again. Refer to “ecm removal and installation” in section 1c .

Open or short circuit in the o/w wire.

Active control inspection

Set up the sds tool. (Refer to sds operation manual for further details.)
Turn the ignition switch on.
Click “evap purge valve operating control” (1).

Suzuki GSX-R. Active control inspection

Click each button (2). At this time, if an operating sound is heard from the evap system purge control valve, the function is normal.

Suzuki GSX-R. Active control inspection

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