Toyota RAV4 manuals

Suzuki GSX-R 1000 Service Manual: DTC c14 (p0120-h/l): tp sensor circuit malfunction

Detected condition and possible cause

Detected condition

Possible cause

C14 Output voltage is not within the following range.

Difference between actual throttle opening and opening calculated by ecm is larger than specified value.

0.2 V ≤ Sensor voltage < 4.8 V

  • Tp sensor maladjusted.
  • Tp sensor circuit open or short.
  • Tp sensor malfunction.
  • Ecm malfunction.
P0120 H Sensor voltage is higher than specified value.
  • Tp sensor circuit is shorted to vcc or ground circuit is open.
  • Tp sensor circuit is open or shorted to ground or vcc circuit is open.
L Sensor voltage is lower than specified value.

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 .

C14 (use of mode select switch)

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 tp sensor couplers (1) and (2) for loose or poor contacts.

    If ok, then measure the tp sensor input voltage.


  1. Disconnect the tp sensor coupler (1).
  2.  Turn the ignition switch on.
  3.  Measure the input voltage between the r wire and ground. Also, measure the voltage between the r wire and b/br wire.

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

Tester knob indication voltage ( )


Tp sensor input voltage 4.5 5.5 V ((+) terminal: r () terminal: ground, (+) terminal: r () terminal: b/br)


Is the voltage ok?

Go to step 3.
  • Loose or poor contacts on the ecm coupler.
  •  Open or short circuit in the r wire or b/br wire.

P0120-h (use of sds)

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 tp sensor couplers (1) and (2) for loose or poor contacts.

    If ok, then check the tp sensor lead wire continuity.


  1. Disconnect the tp sensor couplers (1) and (2).
  2.  Check the continuity between the p/b wire and r wire.

    If the sound is not heard from the tester, the circuit condition is ok.

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

Tester knob indication continuity ( )



  1. Disconnect the ecm couplers. Refer to ecm removal and installation in section 1c .
  2. Check the continuity between the p/b wire and terminal 6. Also, check the continuity between the b/br wire and terminal 35.

Special tool
(a): 0990025008 (multi
circuit tester set)
(b): 0990025009
(needle-point probe set)

Tester knob indication continuity test ( )

Ecm couplers (harness side)


Is the continuity ok?

Go to step 3. P/b wire shorted to vcc, or b/br wire open

P0120-l (use of sds)

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 tp sensor couplers (1) and (2) for loose or poor contacts.

    If ok, then check the tp sensor lead wire continuity.


  1. Disconnect the tp sensor couplers (1) and (2).
  2.  Check the continuity between the p/b wire and ground.

    Also, check the continuity between the p/b wire and b/br wire.

    If the sound is not heard from the tester, the circuit condition is ok.

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

Tester knob indication continuity test ( )



  1. Disconnect the ecm couplers. Refer to ecm removal and installation in section 1c .
  2. Check the continuity between the p/b wire and terminal 6. Also, check the continuity between the r wire and terminal 7.

Special tool
(a): 0990025008 (multi
circuit tester set)
(b): 0990025009
(needle-point probe set)

Tester knob indication continuity test ( )


Ecm couplers (harness side)


Is the continuity ok?

Go to step 2. R or p/b wire open, or y/w wire shorted to ground.

2

  1. Connect the ecm couplers.
  2.  Turn the ignition switch on.
  3.  Measure the input voltage between the r wire and ground. Also, measure the input voltage between the r wire and b/br wire.

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

Tester knob indication voltage ( )


Tp sensor input voltage 4.5 5.5 V ((+) terminal: r () terminal: ground, (+) terminal: r () terminal: b/br)


Is the voltage ok?

Go to step 3. Open or short circuit in the r or b/br wire.

3

  1. Turn the ignition switch off.
  2.  Connect the ecm couplers and tp sensor couplers.
  3.  Insert the needle point probes to the lead wire coupler.
  4.  Turn the ignition switch on.
  5.  Measure the tp sensor output voltage between the p/b wire (+) and b/br wire () with turning the throttle grip open and close.

Special tool
(a): 0990025008 (multi
circuit tester set)
(b): 0990025009
(needle-point probe set)

Tester knob indication voltage ( )


Tp sensor output voltage throttle valve is closed: approx. 1.1 V throttle valve is opened: approx. 4.4 V ((+) terminal: p/b () terminal: b/br)


Is the voltage ok?

  • P/b, r or b/br wire open or shorted to ground, or poor 6, 7 or 35 connection.
  •  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 .
If check result is not satisfactory, replace tp sensor with a new one.

Refer to throttle body disassembly and assembly in section 1d .

DTC c13 (p0105-h/l): iap sensor circuit malfunction
Detected condition and possible cause Detected condition Possible cause C13 Iap sensor voltage is not within the following range. 0.5 V ≤ Sensor voltage &l ...

DTC c15 (p0115-h/l): ect sensor circuit malfunction
Detected condition and possible cause Detected condition Possible cause C15 Output voltage is not with in the following range. 0.15 V ≤ Sensor voltage < ...

Other materials:

Cooling fan inspection
Cooling fan operating temperature standard (on → off): approx. 100 ?C (212 ƒf) (off → on): approx. 105 ?C (221 ƒf) Inspect the cooling fan in the following procedures:  disconnect the cooling fan motor coupler (1). Test the cooling fan motor for load ...

Rear suspension components
Rear shock absorber Rear shock absorber mounting nut Cushion rod Cushion rod mounting nut Cushion lever Cushion lever mounting nut Swingarm pivot lock-nut Swingarm pivot shaft Swingarm pivot nut Swingarm Chain case Plate Chain adjus ...

Front turn signal light removal and installation
Removal Remove the screw. Disconnect the front turn signal coupler (1).  Remove the turn signal light assembly (2). Installation Install the front turn signal light in the reverse order of removal. ...

2011-2018 Copyright www.suzukigsxr.org