IMMOBILIZER SYSTEM REPROGRAM PROCEDURE [WLT-2]
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Caution
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• When a new key registration or immobilizer unit and/or the DDS1 replacement is performed on vehicles equipped with an immobilizer system, the new ID number should be registered using the procedure that includes engine cranking through idling. When the engine starts to reprogram the immobilizer system, if the input voltage to the immobilizer unit becomes lower than the operation voltage of the immobilizer system, the ID number can not be input momentarily. This is not a unit failure, so do not misunderstand during the problem diagnosis (when the terminal voltage goes back to the operation voltage, then the unit also begins to operate normally). Charge or replace the battery.
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Note
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• The DDS1 is installed to the FIP with set bolts and cannot be removed. If there is a possibility that the DDS1 is faulty, be sure to ask your distributor to repair it.
• When an error occurs during the reprogram procedures, except when both the immobilizer unit and the DDS1 are replaced, repeat the procedure from Step 1. If you still cannot reprogram, confirm how many keys can start the engine. Then, perform the key replacement or addition reprogram procedure according to the valid key number.
• To make a copy of the key or replace the immobilizer system component parts (the key(s), steering lock, immobilizer unit, and/or the DDS1), the customer should bring all keys to the dealer. This is because the previously programmed key IDs are erased when reprogramming the key IDs into the immobilizer unit and the DDS1.
• If the customer has only one valid key when replacing the immobilizer system component parts, the dealer should contact a distributor to obtain the code word.
• To replace the immobilizer unit or the DDS1, there should be at least one valid key. Otherwise, both the immobilizer unit and the DDS1 should be replaced.
• The immobilizer unit and the DDS1 cannot be changed from one car to another. If an immobilizer unit or the DDS1 is replaced with one from another car, the engine will not start. Reprogramming of the IDs and code word of an immobilizer unit that has already been programmed as set is not possible.
• The immobilizer unit and the DDS1 should not be newly replaced as a trial during troubleshooting. If this is done, the ID and code word will be programmed into the new unit and it cannot be used for other cars even if you find that the old unit was normal.
• The immobilizer system cannot be deactivated.
• Confirm that all keys registered can start the engine after the reprogram procedure. When confirming, wait for more than 5 seconds before inserting the next key.
• When the customer does not need to register more than two keys, the following procedures can be stopped after registering two keys.
Key Replacement or Addition
When the customer has two or more valid keys
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Note
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• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Cut new transponder equipped key(s).
2. Using key 1, turn engine switch to ON position then back to LOCK position five times. The key should not remain at ON position or LOCK position for more than 1 second.
- (1) Turn key 1 back to ON position. Observe illumination of security light in instrument cluster.
- (2) Turn key 1 to LOCK position and remove key 1 from steering lock. Observe that security light goes out.
3. Using key 2, turn to ON position. Observe that security light illuminates (for 1—2 seconds) and goes out.
- (1) Turn key 2 to LOCK position and remove from steering lock.
4. Repeat Step 3 with key 3.
5. If there are 4—8 keys (valid and/or new keys), repeat Step 3.
6. Wait for 30 seconds to quit reprogram mode.
When the customer has only one or no valid key (code word is required)
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Note
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• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Cut new transponder equipped key(s).
2. Using key 1, turn engine switch to ON position then back to LOCK position five times. The key should not remain at ON position or LOCK position for more than 1 second.
- (1) Turn key 1 back to ON position. Observe flashing of security light (300 ms ON—300 ms OFF) in instrument cluster.
- (2) Turn key 1 to LOCK position and wait for 5 minutes until security light decreases in flashing frequency to 1.2 seconds.
- (3) Input code word. (See CODE WORD INPUT PROCEDURE.)
- (4) Observe security light stops flashing and illuminates (1 second), then goes out.
- (5) Turn key 1 to LOCK position and remove from steering lock.
3. Using key 2, turn to ON position. Observe that security light illuminates (for 1—2 seconds) and goes out.
- (1) Turn key 2 to LOCK position and remove from steering lock.
4. Repeat Step 3 with key 3.
5. If there are 4—8 keys (valid and/or new keys), repeat Step 3.
6. Wait for 30 seconds to quit reprogram mode.
Steering Lock Replacement
When the customer has two or more valid keys for the old steering lock
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Note
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• When replacing the steering lock, the coil and keys should be replaced as a set.
• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Remove old steering lock.
2. Connect new steering lock to engine switch connector.
3. Connect old steering lock to coil connector as shown in figure.
4. Insert key 1 into old steering lock.
5. Insert key 3 into new steering lock and turn to ON position then back to LOCK position five times. The key should not remain at ON position or LOCK position for more than 1 second.
- (1) Turn key 3 back to ON position. Observe illumination of security light in instrument cluster.
- (2) Turn key 3 to LOCK position. Observe that security light goes out.
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Note
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• Operate next two steps within 30 seconds of Step 5-(2).
6. Remove key 1 from old steering lock and insert key 2 into old steering lock.
7. Using key 3 of new steering lock, turn to ON position. Observe that security light illuminates (for 1—2 seconds) and goes out.
- (1) Turn key 3 to LOCK position.
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Note
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• Operate next two steps within 30 seconds of Step 7-(1).
8. Disconnect coil connector from old steering lock, and reconnect coil connector to new steering lock.
9. Using key 3 of new steering lock, turn to ON position. Observe that security light illuminates (for 1—2 seconds) and goes out.
- (1) Turn key 3 to LOCK position and remove from steering lock.
10. Repeat Step 9 with key 4.
11. Repeat Step 9 with key 5.
12. Wait for 30 seconds to quit reprogram mode.
13. Install new steering lock.
When the customer has only one or no valid key (code word is required)
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Note
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• When replacing the steering lock, the coil and keys should be replaced as a set.
• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Replace steering lock.
2. Using key 1, turn engine switch to ON position then back to LOCK position five times. Key should not remain at ON position or LOCK position for more than 1 second.
- (1) Turn key 1 back to ON position. Observe flashing of security light (300 ms ON—300 ms OFF) in instrument cluster.
- (2) Turn key 1 to LOCK position and wait for 5 minutes until security light decreases in flashing frequency to 1.2 seconds.
- (3) Input code word. (See CODE WORD INPUT PROCEDURE.)
- (4) Observe the security light stops flashing and illuminates (1 second), then goes out.
- (5) Turn key 1 to LOCK position and remove from steering lock.
3. Using key 2, turn to ON position. Observe that security light illuminates (for 1—2 seconds) and goes out.
- (1) Turn key 2 to LOCK position and remove from steering lock.
4. Repeat Step 3 with key 3.
5. Wait for 30 seconds to quit reprogram mode.
Immobilizer Unit Replacement
When the customer does not have valid key
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When the customer has at least one valid key
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Note
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• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Cut new transponder equipped key(s) if necessary.
2. Replace immobilizer unit. (See IMMOBILIZER UNIT REMOVAL/INSTALLATION.)
3. Using key 1, turn to ON position. Observe that security light illuminates (for 1—2 seconds) and goes out.
- (1) Wait for 16 minutes until security light begins to blink with a flashing frequency of 300 ms. (The light will blink for 60 seconds.)
- (2) Turn key 1 to LOCK position while the light is flashing and remove from steering lock.
4. Using key 2, turn to ON position while the light is flashing. Observe that security light illuminates (for 1—2 seconds) and goes out.
- (1) Turn key 2 LOCK position and remove from steering lock.
5. Repeat Step 4 with key 3.
6. If there are 4—8 keys (valid and/or new keys), repeat Step 4.
7. Wait for 30 seconds to quit reprogram mode.
DDS1 Replacement
When the customer does not have valid key
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When the customer has at least one valid keys
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Note
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• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Cut new transponder equipped key(s) if necessary.
2. Replace the DDS1. (See FUEL INJECTION PUMP REMOVAL/INSTALLATION [WLT-1, WLT-2].)
3. Using key 1, turn to ON position, and observe that security light illuminates (for 1—2 seconds) in instrument cluster.
- (1) Turn key 1 to LOCK position.
4. Wait for 30 seconds to quit reprogram mode.
Both Immobilizer Unit and DDS1 Replacement
When the customer has two or more valid keys
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Note
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• Keys may be valid or new keys.
• When an error occurs in Steps 1 to 4, repeat the procedure from Step 1.
• When an error occurs in Step 5, perform the “Reprogram error recovery procedure for both immobilizer unit and DDS1 replacement.”
• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Cut new transponder equipped key(s) if necessary.
2. Replace immobilizer unit and DDS1. (See IMMOBILIZER UNIT REMOVAL/INSTALLATION.) (See FUEL INJECTION PUMP REMOVAL/INSTALLATION [WLT-1, WLT-2].)
3. Using key 1, turn engine switch to ON position. Observe that security light illuminates and then goes out in instrument cluster.
- (1) Turn key 1 to LOCK position. Observe that security light blinks once repeatedly.
4. Using key 2, turn engine switch to ON position. Observe that security light illuminates and then goes out.
- (1) Turn key 2 to LOCK position. Observe that security light blinks twice repeatedly.
5. Using key 3, turn engine switch to ON position. Observe that security light illuminates and then goes out.
- (1) Turn key 3 to LOCK position. Observe that security light blinks three times repeatedly.
6. If there are 4—8 keys (valid and/or new keys), repeat Step 4.
7. Wait for 30 seconds to quit reprogram mode.
Reprogram error recovery procedure for both immobilizer unit and DDS1 replacement
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Note
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• If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
1. Using key 1, turn engine switch to ON position then back to LOCK position five times. Key should not remain at ON position or LOCK position for more than 1 second.
2. Using key 1, turn engine switch to ON position (security light illuminates).
3. Turn key 1 to LOCK position and remove from steering lock (security light goes out).
4. Using key 2, turn to ON position. Observe that security light illuminates (for 1—2 seconds) and goes out.
5. Turn key 2 to LOCK position and remove from steering lock.
6. Repeat Steps 4 and 5 with key 3.
7. If there are 4—8 keys (valid and/or new keys), repeat Steps 5 and 6.
8. Wait for 30 seconds to quit reprogram mode.
