Component Tests: Tachometer

2004 Toyota Matrix XR, FWD, StandardSECTION Tachometer
WARNING: This page is about a different car, the 2003 Lexus GS 430, 2003 Lexus GS 300, 2002 Lexus GS 430, and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Reversing the connection of the tachometer will damage the transistors and diodes inside. When removing and installing the tachometer, be careful not to drop or subject it to heavy shocks.
  1. On-Vehicle Inspection -  Connect a tune-up test tachometer and start the engine. Compare the tester and tachometer indications (DC 13.5 Volts at 77°F (25°C)). See INSPECTING TACHOMETER ON-VEHICLE  table.
    INSPECTING TACHOMETER ON-VEHICLE

    Standard Indication Allowable Range
    700 630-770
    1000 900-1100
    2000 1850-2150
    3000 2800-3200
    4000 3800-4200
    5000 4800-5200
    6000 5750-6250
    7000 6700-7300
  2. Resistance Inspection -  Measure the resistance between terminals with fixing pointer to the stopper. See CONNECTOR IDENTIFICATION . See INSPECTING RESISTANCE WITH FIXING POINTER TO STOPPER  table. If the resistance value is not as specified, replace the meter. See COMBINATION METER  under REMOVAL & INSTALLATION.
RENDER: 1.0x

NO RELATED

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

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