DTC Troubleshooting
DIAGNOSTIC PROCEDURES CHART
| Step |
Action |
YES |
NO |
| 1 |
Was "Engine and Emission Control System Check" performed? |
Go to Step 2. |
Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK . |
| 2 |
EVAP leak check pressure sensor power supply circuit check
- Confirm that ignition mode of keyless push start system is "OFF".
- Disconnect connector from EVAP leak check module.
- Check for proper terminal connection to EVAP leak check module connector.
- If connections are OK, push engine switch to change ignition mode to "ON".
- Check that voltage between "B1" and "B3" circuits are 5 V.
Are they in good condition? |
Go to Step 5. |
Go to Step 3. |
| 3 |
EVAP leak check pressure sensor ground circuit check
- Check that voltage between "B1" circuit and ground is 5 V.
Is it in good condition? |
Repair or replace "B3" circuit. If this DTC is detected again, replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION
. |
Go to Step 4. |
| 4 |
EVAP leak check pressure sensor power supply circuit check
- Push engine switch to change ignition mode to "OFF".
- Disconnect "C01" and "E01" connectors.
- Check for proper terminal connection to "C01" and "E01" connectors.
- If connections are OK, check the following points.
- Resistance of "B1" circuit: less than 1 Ω
- Resistance between "B1" circuit and ground: infinity
- Resistance between "B1" circuit terminal and each terminal at EVAP leak check module connector: infinity
- Voltage of "B1" circuit: 0 - 1 V (with ignition mode of keyless push start system in "ON")
Are they in good condition? |
Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION
. |
Repair or replace defective wire harness. |
| 5 |
EVAP leak check pressure sensor signal circuit check
- Push engine switch to change ignition mode to "OFF".
- Disconnect "C01" and "E01" connectors.
- Check for proper terminal connection to "C01" and "E01" connectors.
- If connections are OK, check the following points.
- Resistance of "B2" circuit: less than 1 Ω
- Resistance between "B2" circuit and ground: infinity
- Resistance between "B2" circuit terminal and each terminal at EVAP leak check module connector: infinity
- Voltage of "B2" circuit: 0 - 1 V (with ignition mode of keyless push start system in "ON")
Are they in good condition? |
Go to Step 6. |
Repair or replace defective wire harness. |
| 6 |
EVAP leak check pressure sensor check
- Check EVAP leak check pressure sensor for performance referring to "EVAP LEAK CHECK PRESSURE SENSOR (COMBINE WITH BARO SENSOR) ON-VEHICLE INSPECTION
" under EVAP Leak Check Module Inspection
.
Is it in good condition? |
Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION
. |
Replace EVAP leak check module, see EVAP CANISTER REMOVAL AND INSTALLATION
. |