Operation CHARM: Car repair manuals for everyone.

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NOTE: If the engine starts but stalls, or stalls during self-test, perform pinpoint test S1. S1 - ISC-BPA Check

1. Ensure self test is DEACTIVATED, then START and run the engine at 2,000 rpm for two minutes.
2. Turn the engine OFF and wait for ten seconds.

Electronic Instrument Cluster Center In Self-Test Mode:





3. Depress and hold the Gauge Select, English Metric, and Speed Alarm buttons at the same time, then START the engine and release the buttons.
4. Press the gauge select button three times, until cluster mode "dEALEr 4" is displayed.

Jumper Wire Installed Between Pin #2 And Self Test Input (STI):





5. To start the self test either jumper the STI to SIG RTN, or connect a scan tool and depress the test activation switch.
6. Record all codes received.
7. To exit the self-test, turn the ignition switch to the OFF position and remove the jumper wire or unlatch the scan tool switch and remove the scan tool.


8. After the engine ID code, depress and release the brake pedal, then turn the steering wheel 1/2 turn and release it.
9. When the dynamic response "goose" code appears, briefly go to wide open throttle.
10. Record all codes displayed.
11. Turn OFF the engine and DEACTIVATE the self test.
12. If a pass code (11) was received in the ER test, go to substep a. If any other codes are received, refer to the proper service code chart for the diagnostic path.
After completing the proper pinpoint test(s), return to this test and perform the ER test again.
a. If there are continuous memory codes from KEY ON ENGINE OFF self test, proceed to SERVICE CODE CHARTS for the appropriate diagnostic path.
Once the repair procedures are complete, clear the continuous memory codes.
Rerun quick test.
b. If there are no continuous memory codes present and there are no driveability symptoms present, EEC-IV testing is complete.
c. If there are no continuous memory codes present and there are driveability symptoms present, perform the proper diagnosis by symptom chart.