Work Procedure
1.INSPECTION START

Ensure engine stays below 1,000 rpm.

Is any DTC detected? YES >> GO TO 2.
NO >> GO TO 3.

2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
3.CHECK TARGET IDLE SPEED
For procedure, refer to EC-493, "Inspection".
For specification, refer to EC-500, "Idle Speed".
Is the inspection result normal? YES >> GO TO 10.
NO >> GO TO 4.

4.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
>> GO TO 5.
5.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-140, "Work Procedure".
>> GO TO 6.
6.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-141, "Work Procedure".
Is Idle Air Volume Learning carried out successfully? YES >> GO TO 7.
NO >> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
7.CHECK TARGET IDLE SPEED AGAIN
For procedure, refer to EC-493, "Inspection".
For specification, refer to EC-500, "Idle Speed".
Is the inspection result normal? YES >> GO TO 10.
NO >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the Following.
Is the inspection result normal? YES >> GO TO 9.
NO >> Repair or replace. Then GO TO 4
9.CHECK ECM FUNCTION
>> GO TO 4.
10.CHECK IGNITION TIMING
For procedure, refer to EC-494, "Inspection" For specification, refer to EC-500, "Ignition Timing".

1 Timing indicator
Is the inspection result normal? YES >> INSPECTION END.
NO >> GO TO 11.
11.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
>> GO TO 12.
12.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-140, "Work Procedure".
>> GO TO 13.
13.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-141, "Work Procedure".
Is Idle Air Volume Learning carried out successfully? YES >> GO TO 14.
NO >> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
14.CHECK TARGET IDLE SPEED AGAIN
For procedure, refer to EC-493, "Inspection".
For specification, refer to EC-500, "Idle Speed".
Is the inspection result normal? YES >> GO TO 15.
NO >> GO TO 17.
15.CHECK IGNITION TIMING AGAIN
For procedure, refer to EC-494, "Inspection".
For specification, refer to EC-500, "Ignition Timing".

1 Timing indicator
Is the inspection result normal? YES >> INSPECTION END.
NO >> GO TO 16.
16.CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-45, "Removal and Installation".
Is the inspection result normal? YES >> GO TO 17.
NO >> Repair the timing chain installation. Then GO TO 4.
17.DETECT MALFUNCTIONING PART
Check the following.
Is the inspection result normal? YES >> GO TO 18.
NO >> Repair or replace. Then GO TO 4
18.CHECK ECM FUNCTION
>> GO TO 4.
Diagnosis and repair workflow
Additional service when replacing ECMU1040 ENG comm circuit
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
U1040
ENG COMM CIRCUIT
(Engine communication circuit)
ECM cannot transmit a communication signal to generator.
POSSIBLE CAUSE
Harne ...
B00A0 OCS system
Description
DTC B1017, B1018, B1020, B1021, B1022, B1025, B1032, B1048 OCCUPANT
CLASSIFICATION
SYSTEM (OCS)
The OCS control unit is wired to the air bag diagnosis sensor unit. The air
bag diagnosis sensor unit will monitor
the OCS for failures and interruptions in communication between the O ...
P0117, P0118 ECT sensor
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0117
ECT SEN/CIRC
(Engine coolant temperature sensor 1 circuit
low)
An excessively low voltage from the engine coolant temperature
sensor i ...