with the vehicle off, turn the key to on then off, I think 4 times. A code will appear in the mileage box. If you see P done, there are no codes or P done will apear at the end of all the codes. I had a 2000 and a 2003 and it worked in both.
That is the check engine light. The engine computer has detected a malfunction and set a trouble code.
P1491 Rad Fan Control Relay Circuit
Trouble code P0845 means:Transmission fluid pressure sensor/switch "B" circuit
P0442 Evaporative Emission Control System Leak Detected (small leak)
Light Pewter Metallic
P0700 EATX code present. You need to check the trans computer for codes.
P0700 is EATX code present. It simply means that the engine computer has noticed that the transmission computer has a dtc in it. This causes the Pcm (engine computer) to turn the check engine light on. You will need to have the TCM (trans computer) checked for codes to know what to diagnose
"Check Engine" usually means that the computer has stored a diagnostic code. Use a code scanner to find information about the stored code.
Trouble code P0601 means:Internal control module memory check sum error
Plug in a computer diagnostic scanner. The light is on to tell you that you have a problem and the computer has stored a "fault" code.
I use a scan tool after repairing the cause of the code.
Trouble code P0440 means:Evaporative emission control system malfunction