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 .
Piston ring removal and installation
Removal
Remove the piston. Refer to “engine bottom side disassembly” .
Carefully spread the ring opening with your thumbs
and then push up the opposite side of the 1st ring to
remove it.
Note
do not expand the piston ring excessively
since it is apt to be broken down. ...
Cylinder head cover disassembly and
assembly
Disassembly
Remove the cylinder head cover. Refer to “engine top side disassembly” .
Remove the gaskets (1) and (2).
Remove the pair control solenoid valve (3) along
with the pair reed valve covers (4).
Remove the pair reed valves (5) and cmp sensor
(6).
As ...
License plate 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 license plate light mounting nuts.
Remove the lens cover (1) by removing the screws.
Re ...