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Test 88A - All Doors Fail To Lock & Unlock From Any Switch

NOTE: Perform TEST 87A  or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION  and WIRING DIAGRAMS  . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE  after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
  1. Using scan tool, actuate door lock relay. If doors do not lock, go to TEST 88B  . If doors lock, use scan tool to read door lock switch voltage. If voltage is more than 0.2 volt, go to TEST 88C  . If voltage is 0.2 volt or less, go to next step.
  2. Using scan tool, read door lock switch voltage while depressing a door lock switch to LOCK position. If voltage is more than 1.7 volts, replace Body Control Module (BCM). BCM is located behind right kick panel. If voltage is 1.7 volts or less, go to next step.
  3. Turn ignition off. Disconnect BCM Bone connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 9 (Orange/Violet wire) while depressing any door lock switch. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, go to next step.
  4. Remove right front door trim panel. Disconnect door lock switch connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Pink wire) on door lock switch connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
  5. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Orange/Violet wire) on door lock switch connector. If resistance is less than 5 ohms, repair short to ground in Orange/Violet wire. If resistance is 5 ohms or greater, go to next step.
  6. Connect jumper wire between terminals No. 1 (Orange/Violet wire) and No. 4 (Pink wire) on door lock switch connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 9 (Orange/Violet wire) on BCM Bone connector. If voltage is 10 volts or less, repair open Orange/Violet wire. If voltage is more than 10 volts, replace both front door switches.
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