Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking wiring and connectors




- Ignition off
Check the connector for the affected injector. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the resistance of the affected injector between terminals #1 and #2. The resistance must be approximately 12 ohms.
Check the signal cable between the affected injector terminal #2 and engine control module (ECM) terminal #59 (ECM-1E), terminal #90 (ECM-1F), terminal #60 (ECM-20) or terminal #89 (ECM-21). Check for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the power supply cable between system relay terminal #5 (87) and affected injector terminal #1. Check for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Hint: The voltage must be approximately 12 V between injector terminals #1 and #2 (control module side) for approximately 2 seconds after the ignition is switched on.

Remedy as necessary.

Other information
- To connect the breakout box, see Connecting the breakout box. EMS 2000 Connecting The Breakout Box. EMS 2000
- To access or replace the injector, see Replacing the injector(s) Service and Repair
- For information about signals, see Signal specification Signal Specification.













Continue - Selecting diagnostic trouble code (DTC)

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Selecting diagnostic trouble code (DTC)
Which diagnostic trouble code (DTC) has the engine control module (ECM) stored?
1. ECM-1E
2. ECM-1F
3. ECM-20
4. ECM-21.

Select one of the above options to continue.

1 - Verification

2 - Verification

3 - Verification

4 - Verification

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Verification








- Reconnect the connectors, reinstall components etc.
- Ignition on.
Activate the injector using the VCT2000 symbol.





Does the injector click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

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Verification








- Reconnect the connectors, reinstall components etc.
- Ignition on.
Click the VCT2000 symbol to activate the injector.





Does the injector click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

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Verification








- Reconnect the connectors, reinstall components etc.
- Ignition on.
Click the VCT2000 symbol to activate the injector.





Does the injector click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

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Verification








- Reconnect the connectors, reinstall components etc.
- Ignition on.
Click the VCT2000 symbol to activate the injector.





Does the injector click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

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Fault-tracing 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 wiring and connectors

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