Fault Programming In Key Code
Fault programming in key code
Read diagnostic trouble codes (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 diagnostic trouble codes (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
- loose connections between antenna ring terminals (both terminal halves) and 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 , 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 repaired.
Continue - Fault-tracing information
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Checking antenna ring
- Ignition off.
- Disconnect antenna ring
- Connect an ohmmeter between terminal #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 reading 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 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 in both power supplies.
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.
Connect a voltmeter between breakout box terminal #55(#9) and #54(#8).
- Read off the voltmeter.
- Ignition on.
- Read off the voltmeter.
The voltmeter should read 0 V in both power supplies.
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 terminal #55(#9) and #54(#8).
Connect an ohmmeter between breakout box terminal #56(#10) and #54(#8).
In both cases the ohmmeter should read infinite resistance.
OK - No connection
Not OK - Checking for a short-circuit to ground
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Checking for a short-circuit to supply voltage
Check cable between immobilizer control module terminal #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.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Replacing component
Try a new immobilizer control module according to Replacing the control module Replacing the Control Module and initiate according to Initiating a new immobilizer control module Initiating A New Immobilizer Control Module.
Select "Continue" when the fault has been repaired.
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 repaired.
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
Read 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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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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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 : 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.
Go into SCROLL LIST in MONITOR TEST and read off if the key code is stored.
Displays CODE STORED, YES?
Yes - Checking key code, continued
No - Programming 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 repaired.
Continue - Verification
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Programming key
Program each key according to Add a key Add A Key.
One of the following alternatives can occur:
- 1 : Programming was successful,i.e. key was not previously programmed.
- 2 : Volvo Scan Tool (ST) displays message:
PROG. FAILED
CHANGE KEY (YES)
OR CHECK
ANTENNA (EXIT) !
Select one of the following options to continue.
1 - Verification
2 - Defective transponder
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Defective transponder
The key that could not be programmed has a defective transponder, is not a real Volvo key or is not equipped for generation 3 immobilizer.
Order new keys and program them according to Add a key Add A 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
FAULT-TRACING FAILED
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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 read and not approved a transponder code because it was not stored. 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 a key Add A Key.
One of the following alternatives can occur:
1. The programming was successful, the key was not programmed into the control module memory earlier.
2. The Volvo Scan Tool (ST) displays the message:
KEY. CAN NOT BE
PROG. TO IMMO!
USE ANOTHER KEY!
THEN ENTER/EXIT
This means that the key is already programmed for another immobilizer system.
Select one of the following options to continue.
1 - Verification
2 - Defective transponder
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Defective transponder
The key which could not be programmed has a transponder belonging to another immobilizer system.
Order a new key and program it according to Add a key Add A Key.
Continue - Verification
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Verification
Verification
VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Attempt New Test - Checking keys
FAULT-TRACING FAILED
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