Lumina V6-3.1L VIN J (2000)
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The engine coolant temperature must be greater than 15°C (59°F).
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The engine coolant temperature at key ON must be at least 12°C (22°F) cooler than the engine coolant temperature at the last key OFF.
DIAGNOSTIC AIDS
Inspect for the following conditions:
IMPORTANT: Remove any debris from the connector surfaces before servicing a component. Inspect the connector gaskets when diagnosing or
replacing a component. Ensure that the gaskets are installed correctly. The gaskets prevent contaminate intrusion.
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Poor terminal connection.
Inspect the harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and faulty
terminal to wire connection. Use a corresponding mating terminal to test for proper tension. Refer to Testing for Intermittent and Poor
Connections and Connector Repairs in Diagrams.
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Damaged harness.
Inspect the wiring harness for damage. If the harness appears to be OK, observe the display on the scan tool while moving connectors and wiring
harnesses related to the sensor. A change in the display may indicate the location of the fault. Refer to Circuit Testing and Wiring Repairs in
Diagrams.
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Inspect the PCM and the engine grounds for clean and secure connections.
If the DTC is determined to be intermittent, reviewing the Failure Records can be useful in determining when the DTC was last set.
TEST DESCRIPTION
Numbers below refer to the step numbers on the Diagnostic Table:
11. This vehicle is equipped with a PCM which utilizes an Electrically Erasable Programmable Read Only Memory (EEPROM). When the PCM is
being replaced, the new PCM must be programmed.
12. For the PCM to test the engine oil level, start-up engine coolant temperature must be at least 12°C (22°F) cooler than the engine coolant
temperature was last time the ignition was turned off. Allowing the engine to warm and then cool ensures that the PCM checks the engine oil level
switch and that the information displayed on the scan tool is current.
