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Accord, Civic (Except D16Y5 Engine With M/T), CR-V & Odyssey

  1. Turn ignition on. Using backprobe set, measure voltage between PCM 32-pin connector "A" terminals No. 26 (Green wire) and 25-pin connector "B" terminal No. 20 (Brown/Black wire). See PIN VOLTAGE CHARTS article. If voltage is one volt or more, go to next step. If voltage is less than one volt, go to step  4.
  2. Turn ignition off. Disconnect PSP switch 2-pin connector. On Accord and Odyssey, PSP switch is located below and behind engine. See COMPONENT LOCATIONS . On Civic and CR-V, PSP switch is located at left rear of engine compartment, between brake master cylinder and plenum chamber. Connect a fused jumper wire between two PSP switch harness connector terminals. Turn ignition on. Using backprobe set, measure voltage between PCM 32-pin connector "A" terminals No. 26 (Green wire) and 25-pin connector "B" terminal No. 20 (Brown/Black wire). If voltage is less than one volt, replace PSP switch. If voltage is one volt or more, repair open in Green wire between PSP switch and PCM 32-pin connector "A". If wire is okay, check for open in Black wire between PSP switch and ground connection. Go to next step.
  3. On 2.3L Accord, ground connection is located on inside of left strut tower across from master cylinder. On 3.0L Accord, ground connection is located in front center of cowl. On Civic without Continuously Variable Transmission (CVT), ground connection is located on right side of engine, on thermostat housing, under engine coolant temperature switch. On Civic with CVT, ground connection is located at right front of engine between air cleaner box and starter. On CR-V, ground connection is located behind distributor, next to radiator fan switch. On Odyssey, ground connection is located at right front corner of engine compartment, next to windshield washer reservoir. See WIRING DIAGRAMS article.
    NOTE: DO NOT hold steering wheel in full lock position for more then 5 seconds.
  4. Start engine. Turn steering wheel slowly to full lock position. Using backprobe set, measure voltage between PCM 32-pin connector "A" terminals No. 26 (Green wire) and 25-pin connector "B" terminal No. 20 (Brown/Black wire). If battery voltage exists, PSP switch signal is okay. If battery voltage does not exist, go to next step.
  5. Turn ignition off. Disconnect PSP switch 2-pin connector. On Accord and Odyssey, PSP switch is located below and behind engine. On Civic and CR-V, PSP switch is located at left rear of engine compartment, between brake master cylinder and plenum chamber. Turn ignition on. Using backprobe set, measure voltage between PCM 32-pin connector "A" terminals No. 26 (Green wire) and 25-pin connector "B" terminal No. 20 (Brown/Black wire). If battery voltage exists, replace PSP switch. If battery voltage does not exist, go to next step.
  6. Turn ignition off. Disconnect PCM 32-pin connector "A". Check for continuity between ground and PCM 32-pin harness connector "A" terminal No. 26 (Green wire). If continuity exists, repair short in Green wire between PSP switch connector and PCM 32-pin connector "A". See WIRING DIAGRAMS article. If continuity does not exist, substitute a known-good PCM and recheck. See SUBSTITUTING PCM in SELF-DIAGNOSTICS - INTRODUCTION article. If symptom or indication goes away, replace original PCM.
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