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Code 7-1: Right Front Solenoid

  1. Start engine. If ABS light does not go off, go to next step. If light goes off, system is okay at this time. Check for an intermittent open or short circuit in connectors and wire harness between ABS control unit, fail-safe relay and modulator.
  2. Check for ABS trouble codes. If Code 7-1 is not set, perform appropriate trouble code test. If Code 7-1 is set, disconnect modulator 14-pin connector. Remove front fail-safe relay. Connect jumper wire between White/Green wire and Brown/Black wire terminals of fail-safe relay harness connector.
    NOTE: Modulator 14-pin connector has more than one Brown/Black wire. Ensure appropriate wire is tested. See WIRING DIAGRAMS  .
  3. Measure voltage between modulator terminal No. 5 (Brown/Black wire) and ground. See Fig 1 . If battery voltage exists, go to next step. If battery voltage does not exist, repair open Brown/Black wire between front fail-safe relay and modulator.
  4. Measure voltage between modulator terminal No. 8 (Brown/Black wire) and ground. If battery voltage exists, go to next step. If battery voltage does not exist, repair open Brown/Black wire between front fail-safe relay and modulator.
    Fig 1: Identifying Modulator 14-Pin Connector Terminals
    G94F47493Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Measure resistance between modulator connector terminals for inlet and outlet solenoids type "A" and type "B". See Fig 1 . See SOLENOID RESISTANCE  table. If resistance is as specified, go to next step. If resistance is not as specified, inspect modulator wire harness. If wire harness is okay, replace modulator.
    SOLENOID RESISTANCE

    Between 14-Pin Pin Nos. (Wire Color) Type "A" Ohms Type "B" Ohms
    Right Front Inlet Solenoid 8 (WHT/BLK) & 12 (RED/BLK) 2.5-2.9 6.5-7.5
    Rear Inlet Solenoid 9 (WHT) & 13 (RED/WHT) 2.5-2.9 6.5-7.5
    Left Front Inlet Solenoid 10 (WHT/BLU) & 14 (RED/BLU) 2.5-2.9 6.5-7.5
    Right Front Outlet Solenoid 1 (YEL/BLK) & 5 (GRY/BLK) 2.5-2.9 3.3-3.9
    Rear Outlet Solenoid 2 (YEL/WHT) & 6 (GRY/WHT) 2.5-2.9 3.3-3.9
    Left Front Outlet Solenoid 3 (YEL/BLU) & 7 (GRY/BLU) 2.5-2.9 3.3-3.9
  6. Check continuity between 14-pin modulator connector terminal No. 1 (Yellow/Black wire) and ground. If continuity does not exist, go to next step. If continuity exists, inspect modulator wire harness and repair as necessary. If wire harness is okay, replace modulator.
  7. Check continuity between 14-pin modulator connector terminal No. 12 (Red/Black wire) and ground. If continuity does not exist, go to next step. If continuity exists, replace modulator wire harness.
  8. Check continuity between 14-pin modulator connector terminals No. 1 (Yellow/Black wire) and No. 12 (Red/Black wire). If continuity does not exist, go to next step. If continuity exists, replace modulator wire harness.
  9. Disconnect ABS control unit 26-pin connector. Check continuity between Yellow/Black wire terminal of 26-pin connector and ground. If continuity does not exist, go to next step. If continuity exists, Yellow/Black wire between ABS control unit and modulator is shorted to ground.
  10. Check continuity between Red/Black wire terminal of 26-pin connector and ground. If continuity does not exist, go to next step. If continuity exists, Red/Black wire between ABS control unit and modulator is shorted to ground.
  11. Check continuity between Red/Black wire and Yellow/Black wire terminals of 26-pin connector. If continuity does not exist, go to next step. If continuity exists, repair short between Red/Black wire and Yellow/Black wire. See WIRING DIAGRAMS  .
  12. Reconnect modulator 14-pin connector. Measure voltage between Yellow/Black wire terminal of ABS control unit 26-pin connector and ground. If battery voltage exists, go to next step. If battery voltage does not exist, repair open Yellow/Black wire between ABS control unit and modulator.
  13. Measure voltage between Red/Black wire terminal of ABS control unit 26-pin connector and ground. If battery voltage exists, go to next step. If battery voltage does not exist, repair open Red/Black wire between ABS control unit and modulator.
  14. Check continuity between Black wire terminal of 26-pin connector and ground. If continuity does not exist, check ground connection. If ground connection is okay, repair open Black wire between ABS control unit and ground.
  15. If continuity exists, check for loose ABS control unit connectors. If connectors are okay, install a known-good ABS control unit and retest.
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