How to erase permanent DTC
Description
OUTLINE
When a DTC is stored in ECM
When a DTC is stored in ECM and MIL is ON, a permanent DTC is erased with MIL
shutoff if the same malfunction
is not detected after performing the driving pattern for MIL shutoff three times
in a raw.
*1: When the same malfunction is detecte ...
P0300, P0301, P0302, P0303, P0304 misfire
DTC Description
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
Sensor
Input signal to ECM
ECM functio ...
P0456 EVAP control system
DTC Description
DTC DETECTION LOGIC
This diagnosis detects leaks in the EVAP line between fuel tank and EVAP
canister purge volume control solenoid
valve, using the negative pressure caused by decrease of fuel temperature in the
fuel tank after turning
ignition switch OFF.
If ECM judges t ...