Fuel Tank System Quick Test
Fuel tank system quick test
Checking other diagnostic trouble codes (DTCs)
Note! When activating the quick test of the fuel tank system, diagnostic trouble code (DTC) ECM-4000, ECM-4007, ECM-4010, or ECM-4024 must not be stored. Check that none of these diagnostic trouble codes (DTCs) are stored.
- Ignition on
- Read off diagnostic trouble codes (DTCs).
If any of the above diagnostic trouble codes (DTCs) are stored they must be remedied and erased first.
Is diagnostic trouble code (DTC) ECM-4000, ECM-4007, ECM-4010, or ECM-4024 stored?
Yes - No Fault Found
No - Quick test of the fuel tank system
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Quick test of the fuel tank system
- Switch off the ignition to ensure that the status of the quick test for the fuel tank system is "NOT COMPLETED".
The test cannot be started if the status is "COMPLETED"
- Ignition on
- Activate the quick test of the fuel tank system
- Read off the battery voltage, the status of the quick test of the fuel tank system and the status of the test phase. Check the parameters according to the conditions for starting the quick test of the fuel tank system.
Note! The following conditions must be met in order for the quick test of the fuel tank system to be run correctly.
Conditions for the quick test of the fuel tank system to start:
- Diagnostic trouble codes (DTC) ECM-4000, ECM-4007, ECM-4010, or ECM-4024 are not stored
- Engine off, ignition on
- The battery voltage must be 11-14 V
- The status of the test phase must be "NOT RUNNING".
- The status of the quick test for the fuel tank system must be "NOT COMPLETED".
Note! The battery voltage must be correct throughout the entire test. The test can take up to 10 minutes, depending on the quantity of fuel in the fuel tank. Connect a battery charger if necessary.
- Active the quick test for the fuel tank system by clicking the start button. Click the stop button to cancel the test.
Check that the quick test has started by reading off the status of the test phase. The test has started when the status of the test phase is "REFERENCE 1". When the test has started, the power consumption of the pump will change (in the graphic display).
Wait until the test is complete. When the test is completed, the status of the test phase must be "NOT RUNNING" and the status of the quick test for the fuel tank system must be "COMPLETED".
If no faults are detected after the quick test of the fuel tank system, the test result for the leak diagnostic module and the fuel tank system will be "NO FAULT FOUND"
If a fault is detected after the quick test of the fuel tank system is complete, the test result for the fuel tank system or leak diagnostic unit will be "FAULT FOUND" with the fault type, depending on the fault.
Hint: If the test result is "FAULT FOUND" and the fault type is displayed after the completed test, a diagnostic trouble code (DTC) for the fault will be stored in the control module.
Other information
- For further information about leak diagnostics, see Leak diagnostics (certain markets only) Leak Diagnostics (Certain Markets Only)
- For further information about leak diagnostic parameters, see Description of parameters, quick test of the fuel tank system Description of Parameters, Quick Test of the Fuel Tank System
- For information about test phases, see Test phases Test Phases.
Select an alternative to continue when the test is completed:
1. The test result for the fuel tank system and leak diagnostic unit is "OK, NO FAULT FOUND"
2. The test result for fuel tank system or the leak diagnostic unit is "FAULT FOUND", with the fault status
3. The quick test cannot be started.
1 - No Fault Found
2 - Fault-tracing information 1:
3 - Fault-tracing information 2:
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Fault-tracing information 1:
- The control module has detected a fault during the quick test of the fuel tank system. A diagnostic trouble code (DTC) for the fault is stored in the control module.
Read off diagnostic trouble codes (DTCs) from the vehicle communication socket. Fault trace any other diagnostic trouble codes (DTCs) stored in the control module
- Remedy as necessary.
Select a suitable alternative to continue:
1. Repeat the quick test for the fuel tank system
2. Finish.
1 - Checking other diagnostic trouble codes (DTCs)
2 - Exit procedure
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Fault-tracing information 2:
- The control module cannot run the leak diagnostic when the quick test of the fuel tank system is activated. This may be because the conditions for starting the quick test of the fuel tank system have not been met or because there is a fault preventing the quick test from starting
- The quick test for the fuel tank system cannot be run if the battery voltage varies too much. The voltage may vary if the battery is being charged with a battery charger. Charge the battery before beginning the quick test to avoid voltage variations.
Hint: Cancel fault-tracing for this fault. Then read off diagnostic trouble codes (DTCs) from the vehicle communication socket. Fault trace any other diagnostic trouble codes (DTCs) stored in the control module.
- Remedy as necessary.
Select a suitable alternative to continue:
1. Repeat the quick test for the fuel tank system
2. Finish.
1 - Checking other diagnostic trouble codes (DTCs)
2 - Exit procedure
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