Entering Self-Diagnostics
- Ensure battery voltage and fuse No. 21 on 2.0L or No. 22 on 2.8L are okay. Ensure engine ground connections at cylinder head cover and manifold are okay.
- Ensure ignition is off. Connect scan tool to DLC. See Figure and Figure . On all models, scan tool should alternately display 1-RAPID DATA TRANSFER and 2-BLINK CODE OUTPUT.
- Turn ignition on, or start engine, depending on function being selected. See SELECTABLE FUNCTIONS table. Press "1" button to select RAPID DATA TRANSFER function.
- Press "0" and "1" buttons to select ENGINE ELECTRONICS function. Press "Q" button to enter input. ECM identification will be displayed on scan tool.
- If CONTROL MODULE DOES NOT ANSWER message is displayed, press HELP button to print a list of possible causes. With scan tool in RAPID DATA TRANSFER function, press right arrow button. Press "02" to "08" buttons to select desired function. Press "Q" button to enter input.
SELECTABLE FUNCTIONS (1)
| Function | Ignition On | Engine On | ||||||
|---|---|---|---|---|---|---|---|---|
| 02 (Read DTC/Fault Memory) | X | X | ||||||
| 03 (Output Diagnostic Test Mode) | X | (2) | ||||||
| 04 (Start Basic Setting) | X | X | ||||||
| 05 (Erase DTC/Fault Memory) | X | X | ||||||
| 06 (End Output) | X | X | ||||||
| 07 (Code Control Module) (3) | X | X | ||||||
| 08 (Read Measuring Value Block) | X | X | ||||||
| 11 (Log-In Procedure) (3) | X | N/A | ||||||
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