Diagnostic System Check - Instrument Cluster. Chevrolet Optra 2005

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2005 🢒 Optra 🢒 Engine 🢒 Engine Controls - 1.4L DOHC 🢒 Diagnostic System Check - Instrument Cluster

Test Description

The numbers below refer to the step numbers on the diagnostic table.

Lack of communication may be due to a malfunction of the serial data circuits. The specified procedure will determine the particular condition.

The presence of DTCs may be related to an engine electrical condition. The specified procedure will compile all the available information before tests are performed.

Step	Action	Yes	No
1	Install a scan tool. Does the scan tool power up?	Go to Step 2	Go to Scan Tool Does Not Power Up in Data Link Communications
2	Turn ON the ignition, with the engine OFF. Attempt to establish communication with the engine control module (ECM). Does the scan tool communicate with the ECM?	Go to Step 3	Go to Scan Tool Does Not Communicate with Component in Data Link Communications
3	Select the Display DTCs function for the ECM. Does the scan tool display DTC P0461, P0462, P0463 or P0464?	Go to Diagnostic Trouble Code (DTC) List	Go to Symptoms - Instrument Panel, Gages and Console

Step

Action

Yes

Install a scan tool.

Does the scan tool power up?

Go to Step 2

Go to Scan Tool Does Not Power Up in Data Link Communications

Turn ON the ignition, with the engine OFF.
Attempt to establish communication with the engine control module (ECM).

Does the scan tool communicate with the ECM?

Go to Step 3

Go to Scan Tool Does Not Communicate with Component in Data Link Communications

Select the Display DTCs function for the ECM.

Does the scan tool display DTC P0461, P0462, P0463 or P0464?

Go to Diagnostic Trouble Code (DTC) List

Go to Symptoms - Instrument Panel, Gages and Console