Suzuki GSX-R 1000 Service Manual: DTC “c11” (p0340): cmp sensor circuit
malfunction
Detected condition and possible cause
Detected condition |
Possible cause |
The signal does not reach ecm for 3 sec. Or more, after
receiving the starter signal. |
- Cmp sensor circuit open or short.
- Cmp sensor malfunction.
- Ecm malfunction.
|
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 |
- Turn the ignition switch off.
- Lift and support the fuel tank. Refer to “fuel tank removal and
installation” in section 1g .
- Remove the air cleaner box. Refer to “air cleaner box removal
and installation” in section 1d .
- Check the cmp sensor coupler (1) for loose or poor
contacts.
If ok, remove the cmp sensor. Refer to “cmp sensor removal and
installation” in section 1c .

- Connect 3 new 1.5 V batteries in series, 1 kΩ
resistor
and the multi-circuit tester as shown in the figure.
Special tool
: 09900–25008 (multi circuit
tester set)
Tester knob indication
voltage ( )

- Under this condition, if a suitable screwdriver touching
the pick-up surface of the cmp sensor is moved, the
tester reading voltage changes (0.8 V and less . 4.3 V
and more).

Is the voltage ok? |
- B/y, r or b/br wire
open or shorted to
ground.
- Loose or poor
contacts on the cmp
sensor coupler or
ecm coupler
(terminal “7”, “8” or
“35”).
- If wires 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.
- B/y, r or b/br wire
open or shorted to
ground.
- Loose or poor
contacts on the cmp
sensor coupler or
ecm coupler
(terminal “7”, “8” or
“35”).
- If wires 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.
|
- Inspect that metal
particles or foreign
material stuck on the
cmp sensor and
camshaft tip.
- If there are no metal
particles and foreign
material, then replace
the cmp sensor with
a new one.
- Inspect that metal
particles or foreign
material stuck on the
cmp sensor and
camshaft tip.
- If there are no metal
particles and foreign
material, then replace
the cmp sensor with
a new one.
|
* : Immobilizer system equipped model only. ...
Detected condition and possible cause
Detected condition
Possible cause
The signal does not reach ecm for 3 sec. Or more, after
receiving the starter signal.
...
Other materials:
Exhaust control system operation
The excs is operated by the signal supplied from the ecm. The open/close
operation of the excv is performed by
the excva which is controlled by the ecm by changing the current direction of
the actuator motor. The position
sensor (incorporated in the excva) detects the excva movement by measuri ...
Front turn signal light bulb replacement
Caution
when you touch the bulb with your bare
hands, clean the bulb with a cloth moistened
with alcohol or soap water to prevent
premature bulb failure.
Remove the turn signal light assembly.
Remove the socket (1) by turning it
counterclockwise.
Repla ...
Drive chain related parts inspection
Refer to “rear sprocket / rear sprocket mounting drum removal and
installation” .
Dust seal
Inspect the dust seal for wear or damage. If any damage
is found, replace the dust seal with a new one.
Bearing
Inspect the play of the sprocket mounting drum bearing
by hand while it is in the dr ...