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Home › Cadillac › 1987 › Allante F7/ME9 › Repair and Diagnosis › Body & Frame › Body, Cab Control Systems › Body Computer Module › Input Tests › Bi90: Right Turn Switch › Tests For Improper Displays (BI90 Displays HI With Multi-Function Lever In Turn Right Position)

Tests For Improper Displays (BI90 Displays HI With Multi-Function Lever In Turn Right Position)

  1. Connect a fused jumper between terminals A8 and A11 of connector C202 (connected). See Figure.
    • If display reads HI, go to step  2.
    • If display reads LO, replace the right Turn Switch.
  2. Backprobe terminal A8 of connector C202 to ground with a fused jumper.
    • If display reads HI, go to step  3.
    • If display reads LO, repair BLK (1033) wire.
  3. Backprobe BCM terminal 1D14 to ground with a fused jumper. See Figure.
    • If display reads HI, check BCM terminal 1D14 for good terminal contact. If terminal contact is good, replace the BCM.
    • If display reads LO, check/repair BLU/WHT (664) wire for an open.
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