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.
C1607, C1608 EPS Control unit
DTC Logic
DTC DETECTION LOGIC
Dtc
Display item
Malfunction detected condition
Possible cause
C1607
EEPROM
When the memory (EEPROM) system malfunction is
detected in EPS control unit.
Eps control unit
C1608
CONTROL UNIT
When the internal malfuncti ...
Washer tank
Exploded view
Washer tank inlet
Washer tank
Washer level switch
Washer tank seal
Washer pump
Removal and installation
REMOVAL
Drain the washer fluid.
Remove the front under cover. Refer to ext-30, "front under cover :
removal and installation".
Remove the fe ...
System description
Component parts
Component parts location
Ipdm e/r (contains ignition relay-1)
Bcm (view with instrument panel removed)
Fuse block (j/b) (front)
Fuse block (j/b) (back)
Blower relay
Ignition relay-2
Accessory relay-1
Push-button ignition switch
Component description
...