Toyota Celica 2005, Руководство по ремонту

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− DIAGNOSTICS ENGINE (2ZZ − GE)
DI − 301
2005 CELICA (RM1131U)
P0120
P0121
P0122
P0123
P0220
P0222
P0223
P0604
P0607
P2102
P2103
P2111
P2112
P2118
P2119
P2135
If the Electronic Throttle Control System (ETCS) has a mal-
function, the ECM cuts off current to the throttle control
motor. The throttle control valve returns to a predetermined
opening angle (approximately 16
_ ) by the force of the return
spring. The ECM then adjusts the engine output by control-
ling the fuel injection (intermittent fuel
− cut) and ignition tim-
ing in accordance with the accelerator pedal opening angle
to enable the vehicle to continue at a minimal speed.
If the accelerator pedal is depressed firmly and slowly, the
vehicle can be driven slowly. If the accelerator pedal is
depressed quickly, the vehicle may speed up and slow
down erratically.
”pass” condition is detected and then the ignition switch is
turned OFF, the fail
− safe operation will stop and the system
will return to normal condition.
P0325
P0330
Max. timing retardation Ignition switch OFF
P0351
P0352
P0353
P0354
Fuel cut IGF signal is detected for 4 consecutive ignitions
P2120
P2121
P2122
P2123
P2125
P2127
P2128
P2138
The accelerator pedal position sensor has two (main and
sub) sensor circuits. If a malfunction occurs in either of the
sensor circuits, the ECM detects the abnormal signal volt-
age difference between the two sensor circuits and
switches to limp mode. In limp mode, the remaining circuit
is used to calculate the accelerator pedal opening to allow
the vehicle to continue driving.
If both circuits malfunction, the ECM regards the opening
angle of the accelerator pedal to be fully closed. In this
case, the throttle valve will remain closed as if the engine is
idling.
”pass” condition is detected and then the ignition switch is
turned OFF, the fail
− safe operation will stop and the system
will return to normal condition.
5. CHECK FOR INTERMITTENT PROBLEMS
Hand − held tester only:
Inspect the vehicle’s ECM using check mode. Intermittent problems are easier to detect when the ECM is
in check mode with hand
− held tester. In check mode, the ECM uses 1 trip detection logic, which has a higher
sensitivity to malfunctions than normal mode (default), which uses 2 trip detection logic.
(a)
Clear the DTCs (See step 2).
(b) Set the check mode (See step 3).
(c) Perform a simulation test (See page IN − 20).
(d) Check the connector and terminal (See page IN − 30).
(e) Wiggle the harness and connector (See page IN − 30).
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