Page 1377 of 4331
EC
A
N
O P
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. 1534
Fuel Pressure ...................................................... 1534
Idle Speed and Ignition Timing ............................ 1534
Calculated Load Value ........................................ 1534
Mass Air Flow Sensor ......................................... 1534
Intake Air Temperature Sensor ........................... 1534
Engine Coolant Temperature Sensor .................. 1534Air Fuel Ratio (A/F) Sensor 1 Heater ...................
1535
Heated Oxygen sensor 2 Heater ......................... 1535
Crankshaft Position Sensor (POS) ...................... 1535
Camshaft Position Sensor (PHASE) ................... 1535
Throttle Control Motor .......................................... 1535
Fuel Injector ......................................................... 1535
Fuel Pump ........................................................... 1535
Page 1378 of 4331
Page 1379 of 4331

EC
NP
O Diagnostic Work
Sheet " .)
>> GO TO 2. Diagnosis Description " .)
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
(Symptom Table is useful. Refer to EC-487, " Symptom Table " .)
3. Check related service bulletins for information.
Is any symptom described and is any DTC detected? Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5. Description " and
EC- 472, " Fail Safe " .
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 5. Description " and
EC- 472, " Fail Safe " .
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 6. DTC Inspection Priority Chart " and determine trouble
diagnosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONF IRMATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effect ive alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.
Is DTC detected? YES >> GO TO 10.
NO >> Check Intermittent Incident according to EC-120, " Diagnosis Procedure " .
BASIC INSPECTION : Special Repair Requirement " .
Do you have CONSULT-III?
Page 1380 of 4331

Component Function Check " .
Are they within the SP value? YES >> GO TO 9.
NO >> GO TO 8. Diagnosis Procedure " .
Is malfunctioning part detected? YES >> GO TO 11.
NO >> GO TO 9. Symptom Table " based on the confirmed symptom in
step 4, and determine the trouble diagnosis order based on possible causes and symptom.
>> GO TO 10. 25, " How to Perform Efficient Diagnosis for an Electrical Incident " .
Is malfunctioning part detected? YES >> GO TO 11.
NO >> Monitor input data from related sensors or check the voltage of related ECM terminals using CON-
SULT-III. Refer to EC-461, " Reference Value " .
Diag-
nosis Description " .
>> GO TO 12. YES-1 >> DTC is detected: GO TO 10.
YES-2 >> Symptom remains: GO TO 6.
NO >> 1. Before returning the vehicle to the customer, make sure to erase unnecessary DTC in ECM
(Refer to “How to Erase DTC and 1st Trip DTC” in EC-90, " Diagnosis Description " .) and TCM
(Refer to AT-39, " OBD-II Diagnostic Trouble Code (DTC) " .).
2. If the completion of SRT is needed, drive vehi cle under the specific “DRIVING PATTERN” in
EC-478, " How to Set SRT Code " .
3. INSPECTION END
Page 1381 of 4331
EC
NP
O
Diagnostic Work Sheet
INFOID:0000000004779988
DESCRIPTION There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about an incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer complaint.
Utilize a diagnostic worksheet like the one on the WORKSHEET
SAMPLE in order to organize all the information for troubleshooting.
Some conditions may cause the MI L to come on steady or blink and
DTC to be detected. Examples:
• Vehicle ran out of fuel, which caused the engine to misfire.
• Fuel filler cap was left off or incorrectly screwed on, allowing fuel to evaporate into the atmosphere.
WORKSHEET SAMPLE
Page 1382 of 4331
YES >> GO TO 2.
NO >> GO TO 3. SEF976U
Page 1383 of 4331

EC
NP
O
2. Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3. Check idle speed.
For procedure, refer to EC-30, " IDLE SPEED : Special Repair
Requirement " . For specification, refer to
EC-504, " Idle Speed " .
Is the inspection result normal? YES >> GO TO 10.
NO >> GO TO 4. ACCELERATOR PEDAL RELEASED
POSITION LEARNING : Special Repair Require-ment " .
>> GO TO 5. THROTTLE VALVE CLOSED
POSITION LEARNING : Special Repair Requirement " .
>> GO TO 6. IDLE AIR VOLUME LEARNING : Special Repair Requirement " .
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. IDLE SPEED : Special Repair Requirement " .
For specification, refer to EC-504, " Idle Speed " .
Is the inspection result normal? YES >> GO TO 10.
NO >> GO TO 8. DTC Logic " .
• Check crankshaft position sensor (POS) and circuit. Refer to EC-263, " DTC Logic " .
Is the inspection result normal? YES >> GO TO 9.
NO >> Repair or replace. Then GO TO 4. ECM Re-communicating Function " .
>> GO TO 4.
Page 1384 of 4331

IGNITION TIMING : Special
Repair Requirement " . For specification, refer to
EC-504, " Igni-
tion Timing " .
Is the inspection result normal? YES >> GO TO 19.
NO >> GO TO 11. ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Special Repair Require-ment " .
>> GO TO 12. THROTTLE VALVE CLOSED POSITION LE
ARNING : Special Repair Requirement " .
>> GO TO 13. IDLE AIR VOLUME LEARNING : Special Repair Requirement " .
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. IDLE SPEED : Special Repair Requirement " .
For specification, refer to EC-504, " Idle Speed " .
Is the inspection result normal? YES >> GO TO 15.
NO >> GO TO 17. IGNITION TIMING : Special
Repair Requirement " . For specification, refer to
EC-504, " Igni-
tion Timing " .
Is the inspection result normal? YES >> GO TO 19.
NO >> GO TO 16. Removal and Installation " .
Is the inspection result normal? YES >> GO TO 17.
NO >> Repair the timing chain installation. Then GO TO 4. 1 : Timing indicator