05 -- 84
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DIAGNOSTICS
ECD SYSTEM (1ND -- TV)
COROLLA Supplement (RM1129E)
INSPECTION PROCEDURE
HINT:
S
If different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may have an open circuit.
S
Read freeze frame data using an intelligent tester ll. Freeze frame data record the engine condition
when malfunctions are detected. When troubleshooting, freeze frame data c an help determine if the
vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time
the malfunction occurred.
1 READ VALUE USING I NTELLIGENT TESTER II(FUEL PRESSURE)
(a) Connect an intelligent tester ll to the DLC3.
(b) Start the engine and turn the intelligent tester ll ON.
(c) On the intelligent tester ll, select the following menu items: Powertrain / Engine and ECT / Data List
/ Common Rail Pressure.
(d) Check that the internal fuel pressure of the c ommon rail is within the specification below.
Standard:
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
OK
2 CHECK IF DTC O UTPUT RECURS(FUEL PRESSURE SENSOR DTCS)
(a) Connect the intelligent tester ll to the DLC3.
(b) Turn the ignition switch to ON and turn the intelligent tester ll ON.
(c) Select the following menu items: Powertrain / Engine and ECT / DTC / Clear.
(d) Clear DTCs.
(e) Let the engine idle for 60 s econds, and accelerate the engine speed repeatedly (to 2,500 rpm) for 30
seconds.
(f)
Select the following menu items: Powertrain / Engine and ECT / DTC.
(g)
Read DTCs.
Result:
Display (DTC Output)
Proceed To
P0190
A
No output
B
B
CHECK FOR INTERMITTENT PROBLEMS
A
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E