LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Instrument Panel System Displays, Gauges And Console) >> Diagnostic Information and Procedures >> Engine Coolant Temperature Gage Inaccurate or Inoperative

Engine Coolant Temperature Gage Inaccurate or Inoperative

WARNING: This page is about a different car, the 2004 Suzuki Swift + and 2004 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
Engine Coolant Temperature Gage Inaccurate or Inoperative

Step Action Values Yes No
1 Allow the engine to cool to room temperature.
With the ignition ON, does the temperature gage always read at the high end of the scale?		 - Go to Step 7  Go to Step 2 
2 Disconnect engine control module (ECM) electrical connector.
Does the temperature gage indicator drop to the low end of the scale?		 - Go to Step 3 
3 Inspect for a short to ground between the ECM and the temperature gage.
Is there a short to ground?		 - Go to Step 4  Go to Step 5 
4 Repair the short to ground.
Is the repair complete?		 - System OK -
5 Replace the temperature gage.
Is the repair complete?		 - System OK -
6
  1. Disconnect the ECM.
  2. Turn the ignition ON.
  3. Check the voltage at the ECM.
Does the voltage equal the value specified?		 11-14 V Go to Step 9  Go to Step 7 
7 Inspect for an open circuit between the ECM and the temperature gage.
Is there an open circuit?		 - Go to Step 8  Go to Step 5 
8 Repair the open circuit between the ECM and the temperature gage.
Is the repair complete?		 - System OK -
9
  1. Disconnect the ECM.
  2. Connect a jumper wire between the ECM connector and ground.
  3. Turn the ignition ON.
Does the temperature gage move to the high end of the scale?		 - Go to Step 5 
scientia non olet · About LEMON Manuals