LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 1993 >> Imperial >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Body Control Computer >> Self-Diagnostic Tests >> Test 58A - Faulty Turn Signal On Circuit
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test 58A - Faulty Turn Signal On Circuit

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For appropriate wiring diagram, see WIRING DIAGRAMS  at end of article.
  1. Check turn signal operation. If turn signals do not operate correctly, repair turn signal circuit. See appropriate STEERING COLUMN SWITCHES article in ACCESSORIES/SAFETY EQUIPMENT Section. If turn signals operate correctly, check Electronic Vehicle Information Center (EVIC) display.
  2. If EVIC does not display TURN SIGNAL ON or chime does not sound, go to step 5). If EVIC displays TURN SIGNAL ON or chime sound when it should not, turn ignition on (engine off).
  3. Using DRB-II, read turn signal switch status. Ensure turn signal lever is in OFF position. If DRB-II displays CIRCUIT OPEN, replace BCM. Perform VERIFICATION PROCEDURE VER-1.
    NOTE: TURN SIGNAL ON message will appear when turn signal is on for .6 mile and vehicle speed is more than 15 MPH.
  4. If DRB-II does not display CIRCUIT OPEN, turn ignition off. Disconnect Body Control Module (BCM) Black connector. BCM is located behind right side kick panel. Check connector condition, and clean or repair connector as necessary. Perform VERIFICATION PROCEDURE VER-1. If connector is okay, replace BCM. Perform VERIFICATION PROCEDURE VER-1.
  5. If EVIC did not display TURN SIGNAL ON in step 2), turn ignition off. Disconnect BCM Black connector. BCM is located behind right side kick panel. Check connector condition, and clean or repair connector as necessary. Put DRB-II in voltmeter mode.
  6. Turn ignition on (engine off). Check voltage on terminal No. 15 (Red/White wire) of BCM Black connector. If voltage is less than 10 volts, repair open Red/White wire. Perform VERIFICATION PROCEDURE VER-1. If voltage is more than 10 volts, replace BCM. Perform VERIFICATION PROCEDURE VER-1.
scientia non olet · About LEMON Manuals