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Home >> Honda >> 1996 >> Prelude VTEC >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Automatic Transmission Diagnosis - Mp1A) >> Diagnostic Testing >> DTC P1706 (Flash Code 6): A/T Gear Position Switch (Open)
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DTC P1706 (Flash Code 6): A/T Gear Position Switch (Open)

WARNING: This page is about a different variant/trim than selected.
  1. Turn ignition on. If any A/T gear position indicator light stays on when gear selector is moved from that gear, go to next step. If all A/T gear position indicator lights go off when gear selector is moved from that gear, system is okay at this time.
  2. Shift to reverse. Using DVOM, measure voltage between PCM 32-pin connector "A" terminal No. 9 (Black/Red wire) or No. 22 (Brown/Black wire) and PCM 25-pin connector "B" terminal No. 16 (Green/Red wire). See Figure and Figure . If voltage is not present, go to next step. If voltage is present, check and repair open in Green/Red wire between PCM 25-pin connector "B" and A/T gear position switch.
  3. Shift to Neutral or Park. Measure voltage between PCM 32-pin connector "A" terminal No. 9 (Black/Red wire) or No. 22 (Brown/Black wire) and PCM 25-pin connector "B" terminal No. 25 (Light Green wire). If voltage is not present, go to next step. If voltage is present, check and repair open in Light Green wire between PCM 25-pin connector "B" and A/T gear position switch.
  4. Shift to "D4" position. Measure voltage between PCM 32-pin connector "A" terminal No. 9 (Black/Red wire) or No. 22 (Brown/Black wire) and PCM 25-pin connector "B" terminal No. 24 (Green/Black wire). If voltage is not present, go to next step. If voltage is present, check and repair open in Green/Black wire between PCM 25-pin connector "B" and A/T gear position switch.
  5. Shift to "D" position. Measure voltage between PCM 32-pin connector "A" terminal No. 9 (Black/Red wire) or No. 22 (Brown/Black wire) and PCM 25-pin connector "B" terminal No. 8 (Green/Blue wire). If voltage is not present, go to next step. If voltage is present, check and repair open in Green/Blue wire between PCM 25-pin connector "B" and A/T gear position switch.
  6. Shift to "2" position. Measure voltage between PCM 32-pin connector "A" terminal No. 9 (Black/Red wire) or No. 22 (Brown/Black wire) and PCM 25-pin connector "B" terminal No. 17 (Green/Yellow wire). If voltage is not present, go to next step. If voltage is present, check and repair open in Green/Yellow wire between PCM 25-pin connector "B" and A/T gear position switch.
  7. Shift to "1" position. Measure voltage between PCM 32-pin connector "A" terminal No. 9 (Black/Red wire) or No. 22 (Brown/Black wire) and PCM 25-pin connector "B" terminal No. 18 (Light Green/White wire). If voltage is not present, check for loose PCM connectors and replace PCM with known good part, as necessary. If voltage is present, check and repair open in Light Green/White wire between PCM 25-pin connector "B" and A/T gear position switch.
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