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.
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HOMESERVICE MANUALSMITSUBISHI2004DIAMANTE V6-3.5L SOHCREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - RESTRAINTS AND SAFETY SYSTEMSAIR BAG CONTROL MODULESERVICE AND REPAIR
2004 Mitsubishi Diamante V6-3.5L SOHC
Air Bag Control Module: Service and Repair
2004 Mitsubishi Diamante V6-3.5L SOHCSECTION Service and Repair
SRS AIR BAG CONTROL UNIT (SRS-ECU)
CAUTION: Never attempt to disassemble or repair the SRS-ECU. If faulty, replace it.
CAUTION: Do not drop or subject the SRS-ECU to impact or vibration. If denting, cracking, deformation, or rust are discovered in the SRS-ECU, replace it with a new SRS-ECU. Discard the old one.
CAUTION: After deployment of an air bag, replace the SRS-ECU with a new one.
CAUTION: Never use an ohmmeter on or near the SRS-ECU, and use only the special test equipment described in Air Bag Systems/Tools and Equipment.
REMOVAL AND INSTALLATION
REMOVAL SERVICE POINT
NEGATIVE (-) BATTERY CABLE DISCONNECTION
Disconnect the negative battery cable from the battery and tape the terminal.
CAUTION: Wait at least 60 seconds after disconnecting the battery cable before doing any further work. (Refer to SRS Service Precautions)
WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.
INSTALLATION SERVICE POINTS
>A< SRS-ECU INSTALLATION
CAUTION: The SRS may not activate if SRS-ECU is not installed properly, which could result in serious injury or death to the vehicle's driver or front passenger.
>B< POST-INSTALLATION INSPECTION
1. Turn the ignition key to the ON position.
2. Does the SRS warning light illuminate for about 7 seconds, and then remain off for at least 5 seconds after turning off?
3. If yes, SRS system is functioning properly. If no, Testing and Inspection.
CAUTION: Never attempt to disassemble or repair the SRS-ECU. If faulty, replace it.
CAUTION: Do not drop or subject the SRS-ECU to impact or vibration. If denting, cracking, deformation, or rust are discovered in the SRS-ECU, replace it with a new SRS-ECU. Discard the old one.
CAUTION: After deployment of an air bag, replace the SRS-ECU with a new one.
CAUTION: Never use an ohmmeter on or near the SRS-ECU, and use only the special test equipment described in Air Bag Systems/Tools and Equipment.
REMOVAL AND INSTALLATION
REMOVAL SERVICE POINT
NEGATIVE (-) BATTERY CABLE DISCONNECTION
Disconnect the negative battery cable from the battery and tape the terminal.
CAUTION: Wait at least 60 seconds after disconnecting the battery cable before doing any further work. (Refer to SRS Service Precautions)
WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.
INSTALLATION SERVICE POINTS
>A< SRS-ECU INSTALLATION
CAUTION: The SRS may not activate if SRS-ECU is not installed properly, which could result in serious injury or death to the vehicle's driver or front passenger.
>B< POST-INSTALLATION INSPECTION
1. Turn the ignition key to the ON position.
2. Does the SRS warning light illuminate for about 7 seconds, and then remain off for at least 5 seconds after turning off?
3. If yes, SRS system is functioning properly. If no, Testing and Inspection.
RENDER: 1.0x
NO RELATED
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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.