Signal Missing or Faulty
Signal missing or faulty
Checking the key type
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.
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 start
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Checking start
Use the same key which previously could not start the engine. Carry out three more start attempts.
Note, if the start attempts are carried out in quick succession, remove the key from the ignition switch for at least two seconds between each start attempt. Otherwise a new transponder check will not be carried out. (If the key is left in the ignition switch between each start attempt, a new transponder check will not occur until the ignition has been switched off for approximately 30 seconds.)
One of the following may occur:
1. The engine starts every time
2. The engine starts at least once
3. The engine does not start.
Select one of the above response options.
1 - Communication
2 - Damaged transponder
3 - Incorrect key
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Communication
Hint: The fault was due to a temporary disruption in communication between the transponder and the central electronic module (CEM).
Continue - Verification
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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
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Incorrect key
The key is for another vehicle. The transponder code and the mechanical key code (key fits in the ignition switch) happen to match, but the security code does not match that of the vehicle in question.
Order new key(s). Program the key(s). See Key, add / remove Add or Remove Key.
Continue - Verification
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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
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VERIFIED - Fault Found
VERIFICATION FAILED - 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 - FAULT-TRACING FAILED
No - Attempt New Test
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FAULT-TRACING FAILED - No Fault Found
Attempt New Test - Checking the key type
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