Section 1

ECU - OUTLINE OF DIAGNOSTICS, PARTS ORDERING AND WARRANTY APPLICATION

Section 1 - ECU DIAGNOSTICS PROCEDURE

1. Disconnect ECU connectors.





2. Connect SST (Engine Signal Monitor and Adapter) as shown. Place application panel sheet on the Engine Signal Monitor.

3. Measure the voltage according to the specifications in the workshop manual.

4. If the voltage is different than specified, check the related input and output devises and wiring for damage. If no problem is found and the reading remains out of specification, replace the ECU.

5. If the voltage is within specification and the problem still exists, contact the Technical Hotline for assistance.





CAUTION:
Terminals A&B are for external voltmeter connections. Use these terminal to attach a digital voltmeter or oscilloscope for precise volt readings.

Never apply current to these terminals, damage to the ECU will result.





ECU CHECK SHEET

NOTE:
This check sheet must be returned with the replaced part to your servicing PDC.





AIR FLOW METER - OUTLINE OF DIAGNOSTICS, PARTS ORDERING AND WARRANTY APPLICATION