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HOMESERVICE MANUALSACURA2004TL AUTOMATICREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESMULTIPLEX INTEGRATED CONTROL SYSTEMGAUGE CONTROL MODULE INPUT TEST
2004 Acura TL Automatic

Gauge Control Module Input Test

2004 Acura TL AutomaticSECTION Gauge Control Module Input Test
  1. Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
  2. Disconnect the 18P connector from the gauge control module.
  3. Inspect the connector and socket terminals to be sure they are all making good contact.
    • If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
    • If the terminals look OK, go to step  4.
    Fig 1: Identifying 18P Gauge Control Module Connector B Terminals
    G03662048Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Reconnect the connector, and make these input tests at the connector.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, go to step  5.
    GAUGE CONTROL MODULE INPUT TEST - REFERENCE DATA

    Cavity Wire Test Condition Test: Desired result Possible cause if result is not obtained
    B17 WHT/RED Under all conditions Check for voltage to ground:
    There should be battery voltage.
    • Blown No. 7 (7.5 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    B18 YEL Ignition switch ON (II) Check for voltage to ground:
    There should be battery voltage.
    • Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    B1 BLK Under all conditions Check for voltage to ground:
    There should be less than 1 V.
    • Poor ground (G501)
    • An open in the wire
    B10
  5. Disconnect the 18P connector from the gauge control module, and make these input tests at the connector.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, replace the gauge control module.
    GAUGE CONTROL MODULE INPUT TEST - REFERENCE DATA

    Cavity Wire Test Condition Test: Desired result Possible cause if result is not obtained
    B11 BRN/YEL Under all conditions Check for continuity between the B11 terminal and under-dash fuse/relay box connector N (45P) No. 28 terminal: There should be continuity. An open in the wire
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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