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HOMESERVICE MANUALSHONDA1990ACCORD EX, 2D COUPE, STANDARDREPAIR AND DIAGNOSISRESTRAINTSPASSIVE RESTRAINTSSEAT BELTS - AUTOMATICSYSTEM TESTINGCONTROL UNIT INPUT TESTCONTROL UNIT INPUT TESTS 1 - 9
1990 Honda Accord EX, 2D Coupe, Standard

Control Unit Input Tests 1 - 9

1990 Honda Accord EX, 2D Coupe, StandardSECTION Control Unit Input Tests 1 - 9

Disconnect the 7-P and 22-P connectors from the Control Unit, located under the right front seat see Fig 1. Make the input tests No. 1 - 9 at the harness pins.

  • Recheck the connections between the 7-P, 22-P connectors and Control Unit; then replace the control unit if all input test prove OK.
  • Several different wires have the same color. They have been given a number suffix to distinguish them (for example WHITE/GREEN (1) and WHITE/GREEN (2) are not the same).
Fig 1: Control Unit Connectors
G50A12518Courtesy of AMERICAN HONDA MOTOR CO., INC.
CONTROL UNIT INPUT TESTS (HARNESS DISCONNECTED)

Wire Test Condition Test: Desired result Possible Cause, If result is not obtained
WHITE/GREEN Under all conditions Check for voltage to ground Blown No. 36 (30A) fuse or an open in the wire.
WHITE/RED Under all conditions Check for voltage to ground Blown No. 35 (30A) fuse or an open in the wire.
BLACK (1) Under all conditions Check for continuity to ground Poor ground (G501,G502) or an open in the wire.
BLUE/ WHITE (1) and BLUE/ RED (2) or RED/ BLUE (1) and RED/ YELLOW (1) (1) (2) Faulty shoulder buckle motor or the rail. An open in the wire.
BLACK (2) Under all conditions Check for continuity to ground Poor ground (G501,G502) or an open in the wire.
WHITE/YELLOW Under all conditions Check for voltage to ground Blown No. 24 (7.5A) fuse or an open in the wire.
BLUE/ WHITE (2) Ign. key turned from "II" to "O" position. Check for Voltage to ground when key is turned from "II" to "O" Blow No. 22 (15A) fuse Faulty Ing. Switch. an open in the wire.
YELLOW Ing. Switch ON. Check for voltage to ground Blown No. 1 (10A) fuse or an open in the wire.
YELLOW/RED Ing. Switch ON. Attach to ground: Warning light in the gauge assembly Should come ON. Blown bulb. or An open in the wire.
(1) - Connect BLUE/WHITE(1) (or RED/BLUE(1)) terminal to the WHITE/GREEN(1) terminal, and BLUE/RED(2) (or RED/YELLOW(1)) terminal to the BLACK(1) terminal when the shoulder buckle is in the front position.
(2) - Check shoulder buckle motor operation: Driver's (Passenger 's) shoulder buckle should slide from the front position to the rear lock position. When reversing the test leads, the motor should revolve in the counter direction.
RENDER: 1.0x

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