Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMITSUBISHI2005LANCER L4-2.4L SOHCREPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYTESTING AND INSPECTIONPROGRAMMING AND RELEARNING
2005 Mitsubishi Lancer L4-2.4L SOHC
Programming and Relearning
2005 Mitsubishi Lancer L4-2.4L SOHCSECTION Programming and Relearning
ENABLING/DISABLING THE ANSWERBACK FUNCTION
If the keyless entry system locks or unlocks the doors, the dome light flashes or illuminates, the hazard warning light flashes (hazard answerback function) and the horn sounds (horn answerback function). The hazard and horn answerback functions can be enabled or disabled according to the following procedure:
ENABLING/DISABLING THE HAZARD ANSWERBACK FUNCTION
The hazard answerback function can be enabled or disabled by one of the two following procedures.


[When the transmitter is used after connecting scan tool MB991502 to the data link connector or grounding data link connector terminal 1.]
1. Enter the hazard answerback customize mode by observing one of the following steps. If the ETACS-ECU enters the customize mode, its tone alarm will sound once.
1. Turn the ignition switch to "LOCK"(OFF) position.
2. Turn off the hazard warning light switch.
3. Connect scan tool MB991502 to the data link connector terminal 1.
4. Close the driver's side door.
5. Leave the windshield washer switch on for at least ten seconds. Then the ETACS-ECU tone alarm will sound once.
2. If the transmitter "LOCK" switch is pushed consecutively twice (within two seconds), the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors are locked.
- Enable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound twice.
3. If the transmitter "UNLOCK" switch is pushed consecutively twice (within two seconds), the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors are unlocked.
- Enable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound twice.
4. Exit the hazard answerback customize mode by observing one of the following steps.
1. Disconnect scan tool MB991502 from the data link connector, or disconnect data link connector terminal 1. form the ground.
2. Turn the ignition switch to position other then "LOCK"(OFF), or remove the ignition key.
3. Open the driver's side door,
4. Any other warning tone alarm output occurs
NOTE: If any operation is not done for at least three minutes after the ETACS-ECU has entered the customize mode, the hazard answerback customize mode will be canceled automatically.
[When only the transmitter is used]
1. Remove the ignition key.
2. Push the "LOCK" switch while holding the "UNLOCK" switch pushed for four to ten seconds.
3. If the "LOCK" switch and "UNLOCK" switch are released in that order, the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors are locked.
- Enable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound twice.
4. If the "UNLOCK" switch and "LOCK" switch are released in that order, the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the door are unlocked.
- Enable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound twice.
ENABLING/DISABLING THE HORN ANSWERBACK FUNCTION
1. Remove the ignition key.
2. Push the "UNLOCK" switch while holding the "LOCK" switch pushed for four to ten seconds.
3. If the "LOCK" switch and "UNLOCK" switch are released at the same time, the ETACS-ECU tone alarm will sound, indicating that the horn answerback function can be enabled or disabled.
- Enable the horn answerback function: The ETACS - ECU tone alarm will sound once.
- Disable the horn answerback function: The ETACS - ECU tone alarm will sound twice.
If the keyless entry system locks or unlocks the doors, the dome light flashes or illuminates, the hazard warning light flashes (hazard answerback function) and the horn sounds (horn answerback function). The hazard and horn answerback functions can be enabled or disabled according to the following procedure:
ENABLING/DISABLING THE HAZARD ANSWERBACK FUNCTION
The hazard answerback function can be enabled or disabled by one of the two following procedures.
[When the transmitter is used after connecting scan tool MB991502 to the data link connector or grounding data link connector terminal 1.]
1. Enter the hazard answerback customize mode by observing one of the following steps. If the ETACS-ECU enters the customize mode, its tone alarm will sound once.
1. Turn the ignition switch to "LOCK"(OFF) position.
2. Turn off the hazard warning light switch.
3. Connect scan tool MB991502 to the data link connector terminal 1.
4. Close the driver's side door.
5. Leave the windshield washer switch on for at least ten seconds. Then the ETACS-ECU tone alarm will sound once.
2. If the transmitter "LOCK" switch is pushed consecutively twice (within two seconds), the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors are locked.
- Enable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound twice.
3. If the transmitter "UNLOCK" switch is pushed consecutively twice (within two seconds), the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors are unlocked.
- Enable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound twice.
4. Exit the hazard answerback customize mode by observing one of the following steps.
1. Disconnect scan tool MB991502 from the data link connector, or disconnect data link connector terminal 1. form the ground.
2. Turn the ignition switch to position other then "LOCK"(OFF), or remove the ignition key.
3. Open the driver's side door,
4. Any other warning tone alarm output occurs
NOTE: If any operation is not done for at least three minutes after the ETACS-ECU has entered the customize mode, the hazard answerback customize mode will be canceled automatically.
[When only the transmitter is used]
1. Remove the ignition key.
2. Push the "LOCK" switch while holding the "UNLOCK" switch pushed for four to ten seconds.
3. If the "LOCK" switch and "UNLOCK" switch are released in that order, the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors are locked.
- Enable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound twice.
4. If the "UNLOCK" switch and "LOCK" switch are released in that order, the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the door are unlocked.
- Enable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound twice.
ENABLING/DISABLING THE HORN ANSWERBACK FUNCTION
1. Remove the ignition key.
2. Push the "UNLOCK" switch while holding the "LOCK" switch pushed for four to ten seconds.
3. If the "LOCK" switch and "UNLOCK" switch are released at the same time, the ETACS-ECU tone alarm will sound, indicating that the horn answerback function can be enabled or disabled.
- Enable the horn answerback function: The ETACS - ECU tone alarm will sound once.
- Disable the horn answerback function: The ETACS - ECU tone alarm will sound twice.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.