05--100
--
DIAGNOSTICS
ECD SYSTEM (1ND--TV)
COROLLA Supplement (RM1129E)
DTC
P0252
INJECTION PUMP FUEL METERING
CONTROL ”A” RANGE/PERFORMANCE
(CAM/ROTOR/INJECTOR)
DTC
P1228
INJECTION PUMP FUEL METERING
CONTROL ”A” RANGE/PERFORMANCE
(CAM/ROTOR/INJECTOR)
CIRCUIT DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
P0252
S
Open or short in fuel metering unit circuit for more than 0.5
seconds (DTC P1228 set simultaneously)
(The MIL is illuminated as well as a DTC being set immediately
malfunction is detected)
S
ECM internal error (DTC P1228 not set)
(The MIL is illuminated as well as a DTC being set immediately
malfunction is detected)
S
Open or short in fuel metering unit circuit
S
Fuel metering unit
S
ECM
P1228
Open or short in fuel metering unit circuit for more than 0.5
seconds
(The MIL is illuminated as well as a DTC being set immediately
malfunction is detected)
S
Open or short in fuel metering unit circuit
S
Fuel metering unit
S
ECM
HINT:
S
These DTCs are set when the engine idles for approximately 60 seconds.
S
When DTC P0252 and/or P1228 is set, check the internal fuel pressure of the common rail by selecting
the following menu items on the intelligent tester ll: Powertrain / Engine and ECT / Data List / Common
Rail Pressure.
Reference:
Engine Speed
Fuel Pressure (MPa)
Idling
Approximately 25 to 36
2,000 rpm (No engine load)
Approximately 27 to 46
3,000 rpm (No engine load)
Approximately 34 to 69
05MRX--01
To Alphabetical Index
To Sub Index
TOYOTA COROLLA REPAIR MANUAL SUPP 1129E