Fault Programming In Key Code
Fault programming in key code
Read DTCs
Note! Faults which cause diagnostic trouble code (DTC) IMM-225 to be stored can also cause diagnostic trouble codes (DTCs) IMM-233, IMM-234 or IMM-235 to be stored. Read diagnostic trouble codes (DTCs) as follows and select the diagnostic trouble code (DTC) which is stored.
- Ignition off.
- Ignition on.
Read DTCs.
1. IMM-233
2. IMM-234
3. IMM-235
Select one of the following options to continue.
1 - No connection
2 - No communication
3 - Not stored
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No connection
IMM-233 Antenna ring
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 981 3194 Replaced by 9511495 981 3194 Replaced by 951 1495
Checking start
Try to start the car.
Does the car start?
Yes - Checking cables and terminals
No - Checking antenna ring
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Checking cables and terminals
- Ignition off.
Check:
- for loose connections between the antenna ring terminal (both terminal halves) and the immobilizer control module terminal according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- the cable between antenna ring terminal #2 and immobilizer control module #9 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- the cable between antenna #4 and control module terminal #10 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and a short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Select Continue when the fault has been remedied.
Continue - Fault-tracing information
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Checking antenna ring
- Ignition off.
- Disconnect the antenna ring.
- Connect an ohmmeter between terminals #2 and #4 on the antenna ring.
The ohmmeter should read approximately 5 ohms.
Note! Note that the antenna ring casing should be gray at the connector if it is the correct antenna ring for immobilizer generation 3.
Is the value OK?
OK - Checking antenna ring circuit
Not OK - Replacing component
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Checking antenna ring circuit
- Ignition off.
- Connect the adapter box 981 3194 Replaced by 9511495 981 3194 Replaced by 951 1495 and breakout box 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 according to Connecting the breakout box, Immobilizer Connecting the Breakout Box.
- Disconnect immobilizer control module.
Connect an ohmmeter between breakout box terminal #55 (#9) and antenna ring terminal #2.
Connect an ohmmeter between breakout box terminal #56 (#10) and antenna ring terminal #4.
The ohmmeter should read approximately 0 ohms for both measurements.
OK - Checking for a short-circuit to supply voltage
Not OK - Checking for an open-circuit
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Replacing component
Try a new antenna ring according to Replacing antenna ring Service and Repair.
Continue - Verification
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Checking for a short-circuit to supply voltage
- Ignition off.
- Immobilizer control module disabled.
First connect a voltmeter between breakout box terminal #55 (#9) and #54 (#8).
- Note reading on the voltmeter.
Then connect a voltmeter between breakout box terminal #56(#10) and #54(#8).
- Note reading on the voltmeter.
- Ignition on.
- Repeat the measurements as above.
- Make a note of the respective readings.
The voltmeter should read 0 V for both measurements.
OK - Checking for a short-circuit to ground
Not OK - Checking for a short-circuit to supply voltage
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Checking for an open-circuit
Check relevant antenna ring cable for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Checking for a short-circuit to ground
- Ignition off.
- Immobilizer control module disabled.
Connect an ohmmeter between breakout box terminals #55 (#9) and #54 (#8).
Connect an ohmmeter between breakout box terminals #56 (#10) and #54 (#8).
In both cases the ohmmeter should read infinite resistance.
OK - Replacing component
Not OK - Checking for a short-circuit to ground
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Checking for a short-circuit to supply voltage
If the value was higher than 0 when taking reading at #55(#9), check the cable between immobilizer control module #9 and antenna ring terminal #2 for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
If the value was higher than 0 when taking reading at #56(#10), check the cable between immobilizer control module #10 and antenna ring terminal #4 for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Select Continue when the fault has been remedied.
Continue - Verification
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Replacing component
Try a new immobilizer control module according to Replacing immobilizer control module Replacing Immobilizer Control Module.
Initiate the new immobilizer control module according to Initiate the immobilizer control module. Initiate the Immobilizer Control Module.
Continue - Verification
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Checking for a short-circuit to ground
Check the relevant antenna ring cable for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Select Continue when the fault has been remedied.
Continue - Verification
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Verification
Verification
Hint: After finishing the repair check that the repair is successful and that the fault is corrected as follows.
- Ignition on.
- Erase diagnostic trouble codes (DTCs).
Try to start the car.
Does the car start?
Yes - VERIFIED
No - Verification (continued)
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Verification (continued)
- Ignition off for at least 3 seconds.
- Ignition on.
Read off diagnostic trouble codes (DTCs).
Has the diagnostic trouble code (DTC) been stored again?
Yes - VERIFICATION FAILED
No - VERIFIED
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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 - Exit fault-tracing
No - Attempt New Test
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Attempt New Test - Checking start
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - FAULT FOUND
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Attempt New Test - Checking start
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No communication
IMM-234 Transponder communication
Checking keys
Note! Check if there are several keys with transponders on the same key ring. The keys should hang free so that they do not affect the key being used.
Try to start the car with all the customer's keys.
One of the following alternatives can occur:
- 1 : The engine starts with all keys.
- 2 :: The engine starts with at least one of the keys.
- 3 : The engine does not start.
Select one of the following options to continue.
1 - Erasing diagnostic trouble codes (DTCs)
2 - Checking key code
3 - Checking for a short-circuit to supply voltage
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Erasing diagnostic trouble codes (DTCs)
Hint: The fault was due to a temporary fault in the antenna circuit or temporary interference in the communication between transponder and control module.
- Ignition on.
Erase diagnostic trouble codes (DTCs).
Continue - FAULT FOUND
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Checking key code
- Ignition on.
Read off key code if stored.
Displays CODE STORED = YES?
Yes - Checking key code, continued
No - Program the key
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Checking key code, continued
Replace key.
Continue - Checking key code
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Checking for a short-circuit to supply voltage
Check cable between control module terminal #10 and antenna ring terminal #4 for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Select Continue when the fault has been remedied.
Continue - Verification
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Program the key
Program each key according to Add/delete key Add/Delete Key.
Continue - Verification
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Verification
Verification
Hint: After finishing the repair check that the repair is successful and that the fault is corrected as follows.
Does the car start with all 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
Attempt New Test - Checking keys
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Not stored
IMM-235 Key unknown
Checking keys
Try to start the car with all the keys that the customer has.
Does the car start with all keys?
Yes - Fault-tracing information
No - Programming keys
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Fault-tracing information
The control module has previously read and not approved a transponder code because it was not stored in the memory. That can be because of the following:
- There are several Volvo keys with transponders to the same car or other cars on the key ring. The control module reads the key code from the wrong key or a mixture of codes from several keys when attempting to start the car.
The keys should hang free so that they do not affect the key being used.
- Attempts have been made to start the car with a Volvo key which is already programmed to another generation 3 immobilizer.
- Attempts have been made to start the car with a Volvo key before it was programmed into the control module as an approved key to the car.
- Attempts have been made to start the car with a Volvo key that is not one of the approved keys for the car.
- The fault occurred because of temporary interference in the communication between the transponder and the control module.
Continue - FAULT FOUND
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Programming keys
Program the non approved keys according to Add/delete key Add/Delete Key.
Continue - Verification
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Verification
Verification
Hint: After finishing the repair check that the repair is successful and that the fault is corrected as follows.
- Ignition on.
- Erase diagnostic trouble codes (DTCs).
Try to start the car.
Does the car start?
Yes - VERIFIED
No - Verification (continued)
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Verification (continued)
- Switch off the ignition for at least 3 seconds.
- Ignition on.
Read off diagnostic trouble codes (DTCs).
Has the diagnostic trouble code (DTC) been stored again?
Yes - VERIFICATION FAILED
No - VERIFIED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Attempt New Test - Checking keys
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