Detected condition and possible cause
Detected condition |
Possible cause |
|
C40/P0505 | The circuit voltage of motor drive is unusual. |
|
C40/P0506 | Idle speed is lower than the desired idle speed. | |
C40/P0507 | Idle speed is higher than the desired idle speed. |
Wiring diagram
Troubleshooting
Caution
|
Note after repairing the trouble, clear the dtc using sds tool. Refer to “use of sds diagnosis reset procedures” . |
Step |
Action |
Yes |
No |
1 |
Special tool Tester knob indication
continuity test ( Ecm couplers (harness side) Is the continuity ok? |
Go to step 2. | Bl, y, g or br wire open |
2 |
Special tool
Tester knob indication resistance (Ω) Isc valve continuity ∞Ω¶ (infinity) (terminal . Ground)
Isc valve resistance approx. 80 Ω at 20 °c (68 °f) (terminal: “a” – terminal: “b”, terminal: “c” – terminal: “d”) Is the resistance ok? |
If wire is ok, intermittent trouble or faulty ecm. | Replace the isc valve with a new one. Refer to “throttle body removal and installation” in section 1d (page 1d- 10). |
Active control inspection (isc rpm control)
Check 1
Check 2
Check 3
Check 4
Note be careful not to increase the “spec” to 2 000 rpm, or the “engine speed” may reach the upper limit. |
If the isc valve does not function properly, inspect the isc valve or replace the isc valve. Refer to “dtc “c40” (p0505 / p0506 / p0507): isc valve circuit malfunction” or “throttle body disassembly and assembly” in section 1d .
Oil pan / oil pressure regulator / oil strainer
removal and installation
Note
the oil pan/oil strainer/oil pressure regulator
cannot be serviced with the engine installed
in the frame.
Removal
Remove the engine assembly from the frame. Refer to “engine assembly
removal” in section 1d .
Remove the plate (1).
Remove the oil pan ...
Clutch removal
Drain engine oil. Refer to “engine oil and filter replacement” in
section 0b .
Lift and support the fuel tank with the prop stay.
Refer to “fuel tank removal and installation” in section 1g .
Disconnect the ckp sensor coupler (1).
Remove the clutch cover (2).
...
DTC “c41” (p0230-h/l): fp relay circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
C41
No voltage is applied to fuel pump.
Fuel pump relay circuit open or short.
Fuel pump relay malfunction.
Fuel pump relay switch circuit is shorted to power
source.
...