| 1 |
RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION
NOTE:
- Recording can be facilitated using the screen capture function of the PC.
- Record the snapshot data on the repair order.
|
- |
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 REFRIGERANT PRESSURE SENSOR CONNECTOR CONDITION
- Switch the ignition off.
- Disconnect the refrigerant pressure sensor 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 9. |
| No |
Go to the next step. |
| 4 |
INSPECT REFRIGERANT PRESSURE SENSOR CIRCUIT FOR SHORT TO GROUND
- Verify that the refrigerant pressure sensor connector is disconnected.
- Inspect for continuity between the following terminals (wiring harness-side) and body ground:
- Refrigerant pressure sensor terminal C
- Refrigerant pressure sensor terminal B
- Is there continuity?
|
Yes |
Disconnect the PCM connector and inspect the wiring harness for short to ground.
- If the short to ground circuit could be detected in the wiring harness:
- Refer to appropriate wiring diagram and verify whether or not there is a common connector between the following terminals:
- Refrigerant pressure sensor terminal C-PCM terminal 2Y
- Refrigerant pressure sensor terminal B-PCM terminal 2W
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 ground.
- Repair or replace the malfunctioning part.
If there is no common connector:
- Repair or replace the wiring harness which has a short to ground.
- If the short to ground circuit could not be detected in the wiring harness:
Go to Step 9. |
| No |
Go to the next step. |
| 5 |
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 9. |
| No |
Go to the next step. |
| 6 |
INSPECT REFRIGERANT PRESSURE SENSOR SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT TO EACH OTHER
- Verify that the refrigerant pressure sensor and PCM connectors are disconnected.
- Inspect for continuity between refrigerant pressure sensor terminals B and A (wiring harness-side).
- Is there continuity?
|
Yes |
Refer to appropriate wiring diagram and verify whether or not there is a common connector between the following terminals:
- Refrigerant pressure sensor terminal B-PCM terminal 2W
- Refrigerant pressure sensor terminal A-PCM terminal 2V
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 each other.
- Repair or replace the malfunctioning part.
If there is no common connector:
- Repair or replace the wiring harness which has a short to each other.
Go to Step 9. |
| No |
Go to the next step. |
| 7 |
INSPECT REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
- Verify that the refrigerant pressure sensor and PCM connectors are disconnected.
- Inspect for continuity between refrigerant pressure sensor terminal C (wiring harness-side) and PCM terminal 2Y (wiring harness-side).
- Is there continuity?
|
Yes |
Go to the next step. |
| No |
Refer to appropriate wiring diagram and verify whether or not there is a common connector between refrigerant pressure sensor terminal C and PCM terminal 2Y. 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 9. |
| 8 |
INSPECT REFRIGERANT PRESSURE SENSOR
|
Yes |
Replace the refrigerant pressure sensor, then go to the next step. (See REFRIGERANT PRESSURE SENSOR REMOVAL/INSTALLATION
.) |
| No |
Go to the next step. |
| 9 |
VERIFY DTC TROUBLESHOOTING COMPLETED
|
Yes |
Repeat the inspection from Step 1.
Go to the next step. |
| No |
Go to the next step. |
| 10 |
VERIFY AFTER REPAIR PROCEDURE
|
Yes |
Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-G 2.5T)]
.) |
| No |
DTC troubleshooting completed. |