Troubleshooting
Troubleshooting ECM-P241900
Checking the status
- Ignition on
Check if the malfunction is permanent or intermittent by opening and closing the valve in the leakage diagnostics unit. Listen for a clicking sound when the valve opens/closes.
If the valve is not heard, this indicates a permanent malfunction. If the valve can be heard, this indicates that the malfunction is intermittent and not active right now.
Continue - Checking component and cables
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Checking component and cables
Check the leakage diagnostics unit's connector for contact resistance and oxidation.
Check the valve's resistance between the leakage diagnostics unit's connector #3 and #4.
Check the cable between engine control module (ECM) #B48 (#C48) and the leakage diagnostics unit #2 for short-circuit to ground, as well as open circuit.
Remedy as necessary.
Other information
- Connecting the breakout box, B8444S Connecting the Breakout Box
- Leak diagnostic pump, replacing, B8444S, B6324S Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals
Continue - Verification
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Verification
Verification
Hint: After repairing, it is necessary to check that the malfunction has been fixed.
- Ignition off
- Reconnect the connectors, components, etc.
- Ignition on
- Start activation of the valve in the leakage diagnostics unit.
Listen for a clicking sound when the valve opens/closes.
Is the function OK?
Yes - Troubleshooting procedure complete
No - Troubleshooting information
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Troubleshooting information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit Fault-tracing
No - Attempt New Test
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Attempt New Test - Checking component and cables
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