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Civic D16Y5 M/T

  1. Turn ignition on. Measure voltage between PCM connector terminals A9 and C29. See Figure . If about 5 volts exists, go to step 3). If about 5 volts does not exist, turn ignition off. Disconnect clutch switch connector and turn ignition on.
  2. Measure voltage between PCM connector terminals A9 and C29. If about 5 volts exists, replace clutch switch. If about 5 volts does not exist, turn ignition off. Disconnect PCM connector "C". Check for continuity between ground and PCM connector terminal C29. If continuity exists, repair short in wire between PCM connector terminal C29 and clutch switch. If continuity does not exist, substitute known-good PCM and recheck. If about 5 volts now exists, replace original PCM.
  3. Depress clutch pedal. Measure voltage between PCM connector terminals A9 and C29. If less than one volt exists, clutch signal is okay. If about one volt does not exist, turn ignition off. Disconnect clutch switch connector. Check for continuity between clutch switch terminals with clutch switch depressed. If continuity does not exist, adjust or replace clutch switch.
  4. If continuity exists, turn ignition on. Measure voltage between ground and clutch switch harness connector Red wire with clutch pedal depressed. If about 5 volts exists, repair open in Black wire between clutch switch harness connector and ground. See WIRING DIAGRAMS  section. If about 5 volts does not exist, repair open in RED wire between PCM connector terminal C29 and clutch switch harness connector. See WIRING DIAGRAMS  section.
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