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 MANUALSHONDA2000ACCORD EX SEDAN L4-2254CC 2.3L SOHC (VTEC) MFIREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESHIFT INTERLOCKTESTING AND INSPECTIONCONTROL UNIT INPUT TEST
2000 Honda Accord EX Sedan L4-2254cc 2.3L SOHC (VTEC) MFI
Control Unit Input Test
2000 Honda Accord EX Sedan L4-2254cc 2.3L SOHC (VTEC) MFISECTION Control Unit Input Test
Test
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in SRS before performing repairs or service.
1. Disconnect the multiplex control unit 22P connector driver's, then remove the multiplex control unit (driver's) from the driver's under-dash fuse/relay box.
2. Inspect the connectors and connector terminals to be sure they are all making good contact.
If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to step 3.
NOTE: If the shift lock solenoid clicks when the ignition switch is turned ON (II) while depressing the brake pedal with the shift lever in P position, the shift lock system is OK. If the shift lever cannot be shifted from P position, test the transmission range switch.
3. With the driver's unit still disconnected from its connector and the fuse/relay box, make these input test at its connector or its fuse/relay box socket.
If a test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to step 4.
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in SRS before performing repairs or service.
1. Disconnect the multiplex control unit 22P connector driver's, then remove the multiplex control unit (driver's) from the driver's under-dash fuse/relay box.
2. Inspect the connectors and connector terminals to be sure they are all making good contact.
If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to step 3.
NOTE: If the shift lock solenoid clicks when the ignition switch is turned ON (II) while depressing the brake pedal with the shift lever in P position, the shift lock system is OK. If the shift lever cannot be shifted from P position, test the transmission range switch.
3. With the driver's unit still disconnected from its connector and the fuse/relay box, make these input test at its connector or its fuse/relay box socket.
If a test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to step 4.
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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.