Toyota RAV4 manuals

Suzuki GSX-R 1000 Service Manual: DTC c93 (p1769): steering damper solenoid valve circuit malfunction

Suzuki GSX-R 1000 Service Manual / Engine / Engine general information and diagnosis / Diagnostic information and procedures / DTC c93 (p1769): steering damper solenoid valve circuit malfunction

Detected condition and possible cause

Detected condition

Possible cause

C93

Steering damper control current does not flow to the solenoid valve. With ig turned on, ecm detects a failure of internal circuit element.

Solenoid current does not converge to the target value. Battery voltage is 10 v or below with the engine running.

  • Steering damper solenoid valve circuit interrupter element shorted.
  • Feedback current convergence failure.
  • Low battery voltage.
  •  Ecm malfunction.
  • Steering damper solenoid valve circuit shorted to vcc.
  • Steering damper solenoid valve circuit open.
  •  Steering damper solenoid valve circuit shorted.
P1769 H Steering damper control current is higher than specified value. An abnormal current is detected during the vehicle standstill. Solenoid current is 0.7 A or above.
L Steering damper control current is lower than specified value. With ig turned on, ecm detects a discontinuity. An abnormal current is detected during the vehicle standstill.

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.  Check the steering damper solenoid valve coupler (1) for loose or poor contacts.

    If ok, then measure the steering damper solenoid valve resistance.


  1. Disconnect the steering damper solenoid valve coupler.
  2.  Measure the steering damper solenoid valve resistance.

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

Tester knob indication resistance (Ω)

Steering damper solenoid valve resistance approx. 12.5 Ω at 20 c (68 f)


Is the resistance ok?

Go to step 2. Replace the steering damper with a new one.

2

  1. Turn the ignition switch on.
  2.  Measure the voltage between b/bl wire and ground.

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

Tester knob indication voltage ( )


Steering damper solenoid valve voltage approx. 10 V when battery is fully charged condition ((+) terminal: b/bl () terminal: ground)


Is the voltage ok?

  • B/bl (w) wire shorted to vcc, or poor 26 connection failure.
  •  B/o (br) wire open or shorted to ground, or poor 25 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.
  • Low battery voltage or fuse is blown.
  •  B/bl (w) wire open or shorted to ground, or poor 26 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.

Active control inspection

  1. Set up the sds tool. (Refer to sds operation manual for further details.)
  2.  Raise the front wheel off the ground.
  3.  Turn the ignition switch on.
  4.  Click steering damper solenoid operating control (1).

Suzuki GSX-R. Active control inspection


  1. Click each button (2) on/off while turning the handlebars left and right.

Suzuki GSX-R. Active control inspection


Note

at this time, if the steering damping resistance changes from light to heavy by switching on/off, the function is normal.

DTC c91 (p0500): vehicle speed sensor circuit malfunction
Detected condition and possible cause Detected condition Possible cause Speedometer does not receive signal from the vehicle speed sensor for more than 6 sec. When the m ...

Specifications
Service data Injector + fuel pump + fuel pressure regulator Fi sensors ...

Other materials:

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 ...

Diagnostic information and procedures
Starting system symptom diagnosis Condition Possible cause Correction / reference item Engine does not turn though the starter motor runs Faulty starter clutch. Replace. Starter button is not effective Run down battery Repair or replac ...

Brakes
This motorcycle has front and rear disk brakes. Warning Failure to inspect and properly maintain the brakes increases your chance of having an accident. Inspect the brake system before each use according to the inspection before riding section. Follow the maintenance ...

2011-2020 Copyright www.suzukigsxr.org