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DTC P1706/6: Open A/T Gear Position Switch

WARNING: This page is about a different variant/trim than selected.
NOTE: For circuit and terminal identification, see CONNECTOR IDENTIFICATION  and WIRING DIAGRAMS  .
  1. Move selector lever through all gear positions. If any gear position indicators are not working when corresponding gear is selected, go to next step. If all gear position indicators are working correctly when corresponding gear is selected, system is okay. Inspect wire harness for damage.
  2. Test A/T gear position switch. See A/T GEAR POSITION SWITCH  under COMPONENT TESTS. If switch is okay, go to next step. If switch fails test, replace A/T gear position switch. See A/T GEAR POSITION SWITCH  under REMOVAL & INSTALLATION.
  3. Turn ignition off. Place selector lever in "R" position. Measure voltage between PCM harness connector "D" terminal No. 6 (White wire) and connector "B" terminal No. 20 or 22 (Brown/Black wires). If voltage is not present, go to next step. If voltage is present, repair open in White wire between PCM harness connector "D" and A/T gear position switch.
  4. Place selector lever in Neutral or Park. Measure voltage between PCM harness connector "D" terminal No. 13 (Light Green wire) and connector "B" terminal No. 20 or 22 (Brown/Black wires). If voltage is not present, go to next step. If voltage is present, repair open in Light Green wire between PCM harness connector "D" and A/T gear position indicator or appropriate wire from A/T gear position indicator to A/T gear position switch.
  5. Place selector lever in "D" position. Measure voltage between PCM harness connector "D" terminal No. 9 (Yellow wire) and connector "B" terminal No. 20 or 22 (Brown/Black wires). If voltage is not present, go to next step. If voltage is present, repair open in Yellow wire between PCM harness connector "D" and A/T gear position switch.
  6. Place selector lever in "2" position. Measure voltage between PCM harness connector "D" terminal No. 14 (Blue wire) and connector "B" terminal No. 20 or 22 (Brown/Black wires). If voltage is not present, go to next step. If voltage is present, repair open in Blue wire between PCM harness connector "D" and A/T gear position switch.
  7. Place selector lever in "1" position. Measure voltage between PCM harness connector "D" terminal No. 15 (Brown wire) and connector "B" terminal No. 20 or 22 (Brown/Black wires). If voltage is not present, go to next step. If voltage is present, repair open in Brown wire between PCM harness connector "D" and A/T gear position switch.
  8. Turn ignition off. Check for continuity between PCM harness connector "B" terminal No. 20 (Brown/Black wire) and ground, and between terminal No. 22 (Brown/Black wire) and ground. If continuity is not present, repair open in Brown/Black wire(s) between PCM harness connector "B" and ground. If continuity is present, check for loose PCM harness connectors. Repair as necessary. If connectors are okay, substitute a known-good PCM and retest.
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