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Suzuki GSX-R 1000 Service Manual: Dtc c32 (p0201), c33 (p0202), c34 (p0203) or c35 (p0204): primary fuel injector circuit malfunction

Suzuki GSX-R 1000 Service Manual / Engine / Engine general information and diagnosis / Diagnostic information and procedures / Dtc c32 (p0201), c33 (p0202), c34 (p0203) or c35 (p0204): primary fuel injector circuit malfunction

Detected condition and possible cause

Detected condition

Possible cause

Ckp signal is produced but fuel injector signal is interrupted by 4 times or more continuity
  • Injector circuit open or short.
  •  Injector 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

No

1

  1. Turn the ignition switch off.
  2.  Lift and support the fuel tank. Refer to fuel tank removal and installation in section 1g .
  3.  Check the primary fuel injector coupler (1) for loose or poor contacts.

    If ok, then measure the injector resistance.


  1. Disconnect the injector coupler and measure the resistance between terminals.

Special tool
(a): 0990025008 (multi
circuit tester set)

Tester knob indication resistance (Ω)

Injector resistance 11 13 Ω at 20 c (68 f) (terminal terminal)


  1. If ok, then check the continuity between each terminal and ground.

Special tool
(a): 0990025008 (multi
circuit tester set)

Injector continuity ∞Ω (infinity)


Are the resistance and continuity ok?

Go to step 2. Replace the injector with a new one. Refer to throttle body disassembly and assembly in section 1d .

2

  1. Turn the ignition switch on.
  2.  Measure the injector voltage between the y/r wire and ground.
Note

injector voltage can be detected only for 3 seconds after ignition switch is turned on.

Special tool
(a): 0990025008 (multi
circuit tester set)

Tester knob indication voltage ( )


Injector voltage battery voltage ((+) terminal: y/r () terminal: ground)


Is the voltage ok?

  • Gr/w wire open or shorted to ground, or poor 46 connection (#1 cylinder side).
  •  Gr/b wire open or shorted to ground, or poor 45 connection (#2 cylinder side).
  •  Gr/y wire open or shorted to ground, or poor 44 connection (#3 cylinder side).
  •  Gr/r wire open or shorted to ground, or poor 43 connection (#4 cylinder side).
  •  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 circuit in the y/r wire.
DTC c31 (p0705): gp switch circuit malfunction
Detected condition and possible cause Detected condition Possible cause No gear position switch voltage Gp switch voltage is not within the following range. Gp switch ...

Dtc c36 (p1764), c37 (p1765), c38 (p1766) or c39 (p1767): secondary fuel injector circuit malfunction
Detected condition and possible cause Detected condition Possible cause Some failure exists in the fuel injector signal in a high load, high revolution condition. ...

Other materials:

Ecm / various sensors
Since each component is a high-precision part, great care should be taken not to apply any severe impacts during removal and installation. Be careful not to touch the electrical terminals of the electronic parts (ecm, etc.). The static electricity from your body may damage them. ...

Swingarm bearing removal and installation
Removal Remove the swingarm. Refer to swingarm removal and installation .  Remove the swingarm pivot bearings (1) using the special tool. Special tool (a): 0992120240 (bearing remover set) Remove the center spacer (2). Remove the cushion lever bearing (3) usin ...

Precautions
Precautions for clutch system Refer to general precautions in section 00 (page 00-1). Schematic and routing diagram Clutch cable routing diagram Refer to throttle cable routing diagram in section 1d . Diagnostic information and procedures Clutch system symptom diagnosis ...

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