FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Signal Missing or Faulty. Permanent Fault






Signal missing or faulty. Permanent fault

Checking the key type
Visually check to see if the key in the ignition switch is the correct type. See the illustration.
Check that the colour marking (a small semi-circular plastic marking positioned on the head of the key nearest one of the short sides of the metal section) is the correct colour: The correct colour is gray or red.
The key is for another type of Volvo if the colour marking is black or blue.
If the colour is not correct, replace the key with the colour marking as above. Insert the key in the ignition switch. If the key with the correct colour marking is missing order a new key. Program the key(s). See Key, add / remove Add or Remove Key.






Continue - Checking the key code

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

Checking the key code

Note! Check to see if there are several keys (with transponders) on the same key ring. These keys should be separate so that they do not touch the key being used. Also check that no other transponder, such as an electronic door key or an identity card with an integrated transponder, is near by.If there is an automatic toll road transponder in the car, this should be positioned as far from the antenna unit as possible.




- Ignition on
Read off the CODE RECEIVED parameter to see if the key code has been received by the central electronic module (CEM).
If the code has been received Yes is shown.





Has the code been received?

Yes - Checking the stored code

No - Damaged transponder

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

Damaged transponder
The key has a damaged transponder.
Order new key(s). Program the key(s). See Key, add / remove Add or Remove Key.


Continue - Verification

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

Checking the stored code




- Ignition on
Read off the CODE STORED parameter to see if the key code has been stored in the central electronic module (CEM).
If the code has been stored Yes is shown.
Check all the keys belonging to the car.
Make a note of the keys that are not stored.





Is the code stored for all keys?

Yes - Verification

No - Programming keys

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

Programming keys
Program the key(s) which displayed NO, when CODE STORED was read off. See Key, add / remove Add or Remove Key.


Continue - Verification

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

Verification




Verification

Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off.
- Connect the connectors, install the components, etc.
- Try to start the vehicle using all the keys (which are the correct type).

Does the vehicle start using all the keys?

Yes - VERIFIED

No - VERIFICATION FAILED

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

VERIFIED - Fault Found

VERIFICATION FAILED - 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 - FAULT-TRACING FAILED

No - Attempt New Test

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

FAULT-TRACING FAILED - No Fault Found

Attempt New Test - Checking the key type

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