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:
Countershaft gear / driveshaft gear
disassembly and assembly
Refer to “transmission removal” and “transmission installation” .
Disassembly
Caution
identify the position of each removed part.
Organize the parts in their respective groups
(i.E., Drive or driven) so that they can be
reinstalled in their original positions.
Counte ...
Cylinder head related parts inspection
Refer to “cylinder head disassembly and assembly” .
Cylinder head distortion
Decarbonize the combustion chambers.
Check the gasket surface of the cylinder head for
distortion. Use a straightedge and thickness gauge.
Take clearance readings at several places. If
readings exceed the ...
Cushion rod bearing removal and installation
Removal
Remove the cushion rod. Refer to “cushion rod removal and installation”
.
Remove the cushion rod bearing with the special
tool.
Special tool
(a):
09921–20240 (bearing remover set)
Installation
Caution
the removed bearings must be replaced with
new on ...