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Home >> Acura >> 1998 >> Integra GS-R, 4D Sedan >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (Multiplex Control System) >> System Tests >> Wake-Up Function Tests >> Checking Wake-Up Communication Line
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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.
  1. 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.
  2. 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.
  3. 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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