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Ambient Battery Temperature Sensor

  1. Using scan tool, monitor and record ambient battery temperature sensor temperature. Using a thermometer, measure air temperature near ambient battery temperature sensor. If ambient battery temperature sensor temperature is less than 10°F of actual air temperature, go to next step. If ambient battery temperature sensor temperature is 10°F or greater of actual air temperature, replace ambient battery temperature sensor. Perform CHARGING SYSTEM VERIFICATION TEST  under VERIFICATION TESTS.
  2. Turn ignition switch to OFF position. Disconnect ambient battery temperature sensor harness connector. Ambient battery temperature sensor is located in battery tray. Connect a jumper wire between ambient battery temperature sensor terminals harness connector. Turn ignition switch to ON position. Using scan tool in input/output mode, monitor ambient battery temperature sensor voltage. If voltage is equal to zero, replace ambient battery temperature sensor. Perform CHARGING SYSTEM VERIFICATION TEST  under VERIFICATION TESTS. If voltage is not equal to zero, test is complete.
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