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Test Procedures

  1. Check for continuity between ground and pin 2 of Brown connector. If present, go to next step. If no continuity, repair open circuit 57 and repeat Quick Test.
  2. With ignition off, press any button on keypad. If both keyholes light, go to step 5). If one or both don't light, go to next step.
  3. Disconnect Green connector from module. Check for short between pin 6 and 12, then check continuity between pin 12 and connector at inoperative door cylinder. If okay, go to next step. If not, repair and repeat Quick Test.
  4. Reconnect Green connector to module. Connect voltmeter between back of Brown connector pin 12 and ground. Lift up door handle (repeat for each door) and watch for 10 volts to appear on voltmeter within 15 seconds. If low or no voltage is measured, go to next step. If 10 volts are measured, replace cylinder and repeat Quick Test.
  5. Check voltage between pin 13 of Brown connector and Ground. If 10 volts or more, go to next step. If less than 10 volts, check fuse and wiring and repeat Quick Test.
  6. Check for voltage at pin 8 of Brown connector with ignition switch both off and on. If 10 or more volts are present, only with switch on, go to next step. If any other voltage readings are obtained, repair short or break in circuits and repeat Quick Test.
  7. Check for continuity between ground and Brown connector pin 11 as each door handle is lifted. No continuity should exist when handle is released. If handle is okay, go to step 10). If an open circuit exists with handle up or down, go to step 9). If continuity exists with handle released, go to next step.
  8. Disconnect both door handle connectors and module Brown connector. Check for short to ground at Brown connector pin 11. If no continuity to ground, replace door switch and repeat Quick Test. If shorted to ground, repair and repeat Quick Test.
  9. Check continuity between Brown connector pin 11 and connector to inoperative door handle switch. If no continuity, repair circuit and repeat Quick Test. If continuity exists, replace door switch and repeat Quick Test.
  10. Reconnect both Brown and Green connectors at module. Turn ignition off and check voltage between ground and back of pin 12 in Green connector as door handle is lifted (wait for 30 seconds). If 10 volts are measured, go to next step. If less than 10 volts are measured, replace module and repeat Quick Test.
  11. Momentarily connect a jumper across pins 2 and 12 of Green connector. If interior lights come on, go to next step. If not, repair circuits.
  12. Check Green and Brown connectors for loose or broken pins. Repair if necessary, or replace connectors. If connectors are good, replace module. Repeat Quick Test.
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