Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Permanent Fault, Signal Missing






Permanent fault, signal missing

Checking power cable








- Ignition off.
- Disconnect the injector connector.
- Ignition on.
Connect a voltmeter between injector connector terminal 1 (control module side) and ground.









The voltmeter should read battery voltage for 2 seconds immediately the ignition is switched on.

OK - Checking injector

Not OK - Checking wiring and terminals

-------------------------------------------------

Checking injector
Connect an ohmmeter between injector connector terminals 1 and 2 (injector side).









The ohmmeter should read 14-15 ohms at 20°C.

OK - Checking wiring and terminals

Not OK - Defective injector

-------------------------------------------------

Checking wiring and terminals
The cause of the diagnostic trouble code (DTC) has been loose connections in the injector and/or engine control module (ECM) connector. Check connectors for loose connections and contact resistance according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Check cable between injector connector terminal 2 (control module side) and engine control module (ECM) terminal 59 (EFI-115), terminal 90 (EFI-125), terminal 60 (EFI-135) or terminal 89 (EFI-145) depending on the diagnostic trouble code (DTC) stored, for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.













Continue - Verification
Selecting diagnostic trouble code (DTC)

-------------------------------------------------

Defective injector
Try a new injector according to Replacing injector(s) Removal and Replacement.

Continue - Verification
Selecting diagnostic trouble code (DTC)

-------------------------------------------------

Checking wiring and terminals
Check cable between injector terminal 1 and system relay 2/14 terminal 3 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.













Continue - Verification
Selecting diagnostic trouble code (DTC)

-------------------------------------------------

Selecting diagnostic trouble code (DTC)
Which diagnostic trouble code (DTC) has the engine control module (ECM) stored?
1. EFI-115
2. EFI-125
3. EFI-135
4. EFI-145

Select one of the above options to continue.

1 - Verification

2 - Verification

3 - Verification

4 - Verification

-------------------------------------------------

Verification








- Ignition off.
- Reconnect connectors, reinstall components.
- Connect the VCT 2000.
- Ignition on.
Activate the injectors through VCT 2000 as described in Activating components/functions Activating Components and Functions.





Do the injectors click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

-------------------------------------------------

Verification








- Reconnect connectors, reinstall components.
- Ignition on.
Activate the injector by clicking on the symbol for VCT 2000.





Does the injector click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

-------------------------------------------------

Verification








- Reconnect connectors, reinstall components.
- Ignition on.
Activate the injector by clicking on the symbol for VCT 2000.





Does the injector click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

-------------------------------------------------

Verification








- Reconnect connectors, reinstall components.
- Ignition on.
Activate the injector by clicking on the symbol for VCT 2000.





Does the injector click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

-------------------------------------------------

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

------------------------

Attempt New Test - Checking power cable

-------------------------------------------------