LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2001 >> Mustang Base, 2D Convertible, Standard >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Power Mirror System >> System Tests >> Test B: Single Mirror Inoperative

Test B: Single Mirror Inoperative

  1. Remove door trim panel on side of vehicle with inoperative mirror. See REMOVAL & INSTALLATION  . Disconnect inoperative mirror harness connector. Measure voltage between ground and inoperative mirror harness connector Yellow wire terminal. Select appropriate mirror on mirror control switch. Operate mirror control switch to the down and right positions. If 10 volts or less exist in either/both positions, go to next step. If more than 10 volts exist in both positions, go to step  3 .
  2. Remove and disconnect mirror control switch. See REMOVAL & INSTALLATION  . Measure resistance of Yellow wire between inoperative mirror harness connector and mirror control switch harness connector C501 terminal No. 6. See Figure . If resistance is 5 ohms or less, replace mirror control switch. If resistance is more than 5 ohms, repair open in Yellow wire between inoperative mirror and mirror control switch. See WIRING DIAGRAMS  .
  3. Measure voltage between ground and inoperative mirror harness connector Dark Blue wire terminal (driver's side) or Violet wire terminal (passenger's side). Operate mirror control switch to the up position. If more than 10 volts exist, go to step  6 . If 10 volts or less exist, go to next step if diagnosing driver's mirror or step  5 if diagnosing passenger's mirror.
  4. Remove and disconnect mirror control switch. See REMOVAL & INSTALLATION  . Measure resistance of Dark Blue wire between driver's mirror harness connector and mirror control switch harness connector C501 terminal No. 3. See Figure . If resistance is 5 ohms or less, replace mirror control switch. If resistance is more than 5 ohms, repair open in Dark Blue wire between driver's mirror and mirror control switch. See WIRING DIAGRAMS  .
  5. Remove and disconnect mirror control switch. See REMOVAL & INSTALLATION  . Measure resistance of Violet wire between passenger's mirror harness connector and mirror control switch harness connector C501 terminal No. 7. See Figure . If resistance is 5 ohms or less, replace mirror control switch. If resistance is more than 5 ohms, repair open in Violet wire between passenger's mirror and mirror control switch. See WIRING DIAGRAMS  .
  6. Measure voltage between ground and inoperative mirror harness connector Red wire terminal (driver's side) or Dark Green wire terminal (passenger's side). Operate mirror control switch to the left position. If more than 10 volts exist, replace appropriate mirror motor. See REMOVAL & INSTALLATION  . If 10 volts or less exist, go to next step if diagnosing driver's mirror or step  8 if diagnosing passenger's mirror.
  7. Remove and disconnect mirror control switch. See REMOVAL & INSTALLATION  . Measure resistance of Red wire between driver's mirror harness connector and mirror control switch harness connector C501 terminal No. 4. See Figure . If resistance is 5 ohms or less, replace mirror control switch. If resistance is more than 5 ohms, repair open in Red wire between driver's mirror and mirror control switch. See WIRING DIAGRAMS  .
  8. Remove and disconnect mirror control switch. See REMOVAL & INSTALLATION  . Measure resistance of Dark Green wire between passenger's mirror harness connector and mirror control switch harness connector C501 terminal No. 8. See Figure . If resistance is 5 ohms or less, replace mirror control switch. If resistance is more than 5 ohms, repair open in Dark Green wire between passenger's mirror and mirror control switch. See WIRING DIAGRAMS  .