DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P1078 | EXH TIM SEN/CIRC-B1 (Exhaust valve timing control position sensor circuit bank 1) | An excessively high or low voltage from the sensor is sent to ECM. |
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DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected? YES >> Proceed to EC-359, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK EXHAUST VALVE TIMING (EVT) CONTROL POSITION SENSOR POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Check sensor power supply 2 circuit. Refer to EC-444, "Diagnosis Procedure".
Is inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK EVT CONTROL POSITION SENSOR GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK EVT CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK EVT CONTROL POSITION SENSOR
Check the EVT control position sensor. Refer to EC-360, "Component Inspection (EVT Control Position Sensor)".
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace EVT control position sensor. Refer to EM-60, "Removal and Installation".
6.CHECK CAMSHAFT (EXT)
Check the following.
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Remove debris and clean the signal plate of camshaft rear end or replace camshaft. Refer to EM-60, "Removal and Installation".
Component Inspection (EVT Control Position Sensor)
1.EXHAUST VALVE TIMING (EVT) CONTROL POSITION SENSOR-1
Is the inspection result normal? YES >> GO TO 2.
NO >> Replace EVT control position sensor. Refer to EM-60, "Removal and Installation".
2.EVT CONTROL POSITION SENSOR-2
Check resistance EVT control position sensor terminals as shown below.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVT control position sensor. Refer to EM-60, "Removal and Installation".
Rear rh side power window does not operate
When both power window main switch and rear power window switch RH are
operated
When both power window main switch and rear power window switch rh are
operated : diagnosis procedure
1.CHECK REAR POWER WINDOW SWITCH RH
Check rear power window switch RH.
Refer to PWC-40, "REAR POWER WIN ...
Basic inspection
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
NOTE:
“DTC” includes DTC at the 1st trip.
1.OBTAIN INFORMATION ABOUT SYMPTOM
Refer to TM-140, "Diagnostic Work Sheet" and interview the customer to obtain
the malfunction information
(conditions and environment when the malfunctio ...
System
Meter system
Meter system : system diagram
Meter system : system description
COMBINATION METER
The combination meter receives signals from switches, sensors and modules to
control the following functions:
Speedometer/tachometer
Warning lamps
Indicator lamps
Meter illumination c ...