| 1 |
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
NOTE:
- Recording can be facilitated using the screen capture of the PC function.
- Record the freeze frame data/snap shot data.
|
- |
Go to the next step. |
| 2 |
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
- Verify related Service Bulletins and/or on-line repair information availability.
- Is any related repair information available?
|
Yes |
Perform repair or diagnosis according to the available repair information.
- If the vehicle is not repaired, go to the next step.
|
| No |
Go to the next step. |
| 3 |
INSPECT OCV FOR No. 4 CYLINDER DEACTIVATION CONNECTOR CONDITION
- Switch the ignition off.
- Disconnect the OCV for No. 4 cylinder deactivation connector.
- Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
- Is there any malfunction?
|
Yes |
Repair or replace the connector and/or terminals, then go to Step 8. |
| No |
Go to the next step. |
| 4 |
INSPECT PCM CONNECTOR CONDITION
- Disconnect the PCM connector.
- Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
- Is there any malfunction?
|
Yes |
Repair or replace the connector and/or terminals, then go to Step 8. |
| No |
Go to the next step. |
| 5 |
INSPECT OCV FOR No. 4 CYLINDER DEACTIVATION SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
- Verify that the OCV for No. 4 cylinder deactivation and PCM connectors are disconnected.
- Switch the ignition ON (engine off).
NOTE:
- Another DTC may be stored by the PCM detecting an open circuit.
- Measure the voltage at the OCV for No. 4 cylinder deactivation terminal A (wiring harness-side).
- Is the voltage 0 V?
|
Yes |
Go to the next step. |
| No |
Refer to the wiring diagram and verify whether or not there is a common connector between OCV for No. 4 cylinder deactivation terminal A and PCM terminal 1CE.
If there is a common connector:
- Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
- Repair or replace the malfunctioning part.
If there is no common connector:
- Repair or replace the wiring harness which has a short to power supply.
Go to Step 8. |
| 6 |
INSPECT OCV FOR No. 4 CYLINDER DEACTIVATION CIRCUIT FOR OPEN CIRCUIT
- Verify that the OCV for No. 4 cylinder deactivation and PCM connectors are disconnected.
- Inspect for continuity between the following terminals (wiring harness-side):
- OCV for No. 4 cylinder deactivation terminal A-PCM terminal 1CE
- OCV for No. 4 cylinder deactivation terminal B-PCM terminal 1CF
- Is there continuity?
|
Yes |
Go to the next step. |
| No |
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
- OCV for No. 4 cylinder deactivation terminal A-PCM terminal 1CE
- OCV for No. 4 cylinder deactivation terminal B-PCM terminal 1CF
If there is a common connector:
- Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
- Repair or replace the malfunctioning part.
If there is no common connector:
- Repair or replace the wiring harness which has an open circuit.
Go to Step 8. |
| 7 |
INSPECT OCV FOR No. 4 CYLINDER DEACTIVATION
|
Yes |
Replace the OCV for No. 4 cylinder deactivation, then go to next step.
(See OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION REMOVAL/INSTALLATION [VIN M]
). |
| No |
Go to the next step. |
| 8 |
VERIFY DTC TROUBLESHOOTING COMPLETED
- Always reconnect all disconnected connectors.
- Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC
).
- Start the engine and warm it up completely.
CAUTION:
- While performing this step, always operate the vehicle in a safe and lawful manner.
- When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later.
- Drive the vehicle under the snapshot data condition.
- Perform the Pending Trouble Code Access Procedure. (See ON-BOARD DIAGNOSTIC TEST
).
- Is the PENDING CODE for this DTC present?
|
Yes |
Repeat the inspection from Step 1.
Go to the next step. |
| No |
Go to the next step. |
| 9 |
VERIFY AFTER REPAIR PROCEDURE
|
Yes |
Go to the applicable DTC inspection.
(See DTC TABLE
). |
| No |
DTC troubleshooting completed. |