How to Troubleshoot Check Engine Light on 1988 Toyota Pickup

The check-engine light on your 1998 Toyota Pickup can signal a serious problem with the emissions system. It can also indicate a failure of any number of the various sensors or solenoids on the truck that help the truck perform optimally. Before you go replacing any parts, you need to know what that check-engine light means. To do this, you need to use a scan tool capable of reading the diagnostic codes from the truck's computer. The OBD (onboard diagnostic) scan tool is available from most auto-parts stores.

Tools Used: OBD scan tool

Troubleshoot Check Engine Light

Locate the small, rectangular, OBD I scan port to the left of the truck's fuse panel in the driver's-side foot well.

Plug the OBD scan tool plug into the open port.

Turn the ignition on but don't start the truck.

Turn the scan tool's power on and wait for the scan tool to retrieve the engine codes. The scan tool will read "OK" when it is finished.

Press the "Menu" button on the scan tool and use the arrow buttons on the tool to scroll to "Stored Codes."

Read the engine codes and take them to a Toyota dealership to have them translated for you.

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