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 MANUALSACURA1998INTEGRA RS, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 29 (MULTIPLEX CONTROL SYSTEM)SYSTEM TESTSWAKE-UP FUNCTION TESTSCHECKING WAKE-UP COMMUNICATION LINE
1998 Acura Integra RS, Automatic
Checking Wake-Up Communication Line
1998 Acura Integra RS, AutomaticSECTION Checking Wake-Up Communication Line
WARNING: This page is about a different car, the 1997 Acura 3.5RL. However, it is still accessible from the selected car via links, so may be relevant.
- Check continuity of wake-up communication line. If continuity exists, go to next step. If continuity does not exist, repair open in wake-up communication line.
- Check voltage between each multiplex control unit with wake-up communication lines connected and system in sleep mode and wake-up mode. There should be battery voltage in sleep mode and zero volts in wake-up mode. If voltage is not as specified, go to next step.
- Disconnect wake-up communication line connector from one multiplex control unit and check voltage. Reconnect connector and disconnect wake-up communication line connector from other end of circuit and check voltage. If voltage is not as specified at both ends of circuit, wake-up communication line is shorted to another wire or to ground. If voltage is not as specified at only one end of circuit, ensure connector and terminal are okay. If connector and terminal are okay, there may be a wake-up communication line short inside multiplex control unit.
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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.