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Circuit/System Verification

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, measure and record the battery voltage at the battery terminals. The voltage should be between 12.0-15.0 V.
  2. Remove the drive belts. Refer to Drive Belt Tensioner Replacement , Drive Belt Idler Pulley Replacement or Drive Belt Replacement .
  3. Place the S39 ignition switch to the CRANK position.
    • If the engine cranks normal, inspect the engine and belt drive system for mechanical binding, seized engine, or seized generator, etc.
  4. Test for less than 0.5 V between the positive battery cable and terminal A X2 at the M64 starter motor as the S39 ignition switch is placed to the CRANK position.
    • If greater than the specified value, replace the positive battery cable.
  5. Test for less than 0.5 V between the negative battery cable and the starter motor case as the S39 ignition switch is placed to the CRANK position.
    • If greater than the specified value, replace the negative battery cable.
  6. If all circuits test normal, replace the M64 starter motor.
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