Permanent DTC is defined in SAE J1979/ISO 15031-5 Service $0A.
ECM stores a DTC issuing a command of turning on MIL as a permanent DTC and keeps storing the DTC as a permanent DTC until ECM judges that there is no presence of malfunction.
Permanent DTCs cannot be erased by using the erase function of CONSULT or Generic Scan Tool (GST) and by disconnecting the battery to shut off power to ECM. This prevents a vehicle from passing the in-use inspection without repairing a malfunctioning part.
When not passing the in-use inspection due to more than one permanent DTC, permanent DTCs should be erased, referring to this manual.
NOTE:
PERMANENT DTC SET TIMING
The setting timing of permanent DTC is stored in ECM with the lighting of MIL when a DTC is confirmed.
C1164, C1165, C1166, C1167 CV/SV System
DTC Logic
Dtc detection logic
DTC
Display Item
Malfunction detected condition
Possible causes
C1164
CV 1
When a malfunction is detected in cut valve 1.
Harness or connector
ABS actuator and electric unit
(control unit)
Fusible link
Battery ...
Front seat
Driver side
DRIVER SIDE : Exploded View
Driver side
Headrest
Headrest holder (locked)
Headrest holder (free)
Seatback silencer
Seatback trim
Seatback pad
Seat belt buckle
Seat cushion outer finisher (RH)
Slide cover (RH)
Seat cushion inner finisher (RH)
Recline mech ...
P0447 EVAP Canister vent control valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0447
VENT CONTROL VALVE
(Evaporative emission system vent
control circuit open)
An improper voltage signal is sent to
ECM throug ...