EEC-IV - Quick Test - Engine Running Self-Test
EEC-IV - Quick Test - All Engines
1989
QUICK TEST: Engine Running 5.0 Self-Test
A PERFORMING THE ENGINE RUNNING SELF TEST
SPECIAL NOTES:
^ If the engine starts but stalls, or stalls during Self-Test, Go to Pinpoint Test Step [S1].
^ On vehicles equipped with the Brake On/Off Switch (BOO), the brake pedal MUST be depressed and released AFTER the ID code.
^ On vehicles equipped with the Power Steering Pressure Switch (PSPS), within 1 to 2 seconds after the ID code, the steering wheel must be turned at least one-half turn and released.
^ On vehicles equipped with E40D transmission, the Overdrive Cancel Switch (0CS) must be cycled after the ID code.
^ The Dynamic Response code is a single pulse (or a 10 code on the STAR Tester) that occurs 6-20 seconds after the engine running identification code. (See APPENDIX: Code Output Format.)
^ When the Dynamic Response code occurs, perform a brief wide-open throttle.
HOW TO RUN THE ENGINE RUNNING SELF-TEST
[DO]
^ Deactivate Self-Test.
^ Start and run engine at 2,000 rpm for two minutes. This action warms up the EGO sensor.
^ Turn engine off, wait 10 seconds.
^ Start engine.
^ Activate Self-Test according to Quick Test Step 3.0 A.
^ After the ID code, depress and release the brake pedal if appropriate. See Special Note above.
^ After the ID code, within 1 to 2 seconds, turn the steering wheel at least one-half turn and then release it, if appropriate. See Special Note above.
^ If a dynamic response code occurs, perform a brief wide-open throttle (WOT).
^ Record all service codes displayed.
^ Go to part B of Engine Running Self-Test.
[DON'T]
^ Depress the throttle unless a Dynamic Response Code is displayed.
14-12 1989 EEC-IV - Quick Test - All Engines
QUICK TEST: Engine Running 5.0 Self-Test
B CODE OUTPUT
Engine Dynamic Engine ACTION TO TAKE
ID Response Running
Engine Running Self-Test indicates a PASS.
2(0), 3(0) 1(0) or - If Continuous Memory Codes were present, Go to
4(0) or 5(0) - no - 11 QUICK TEST STEP 6.0.
display
- If Continuous Memory is a PASS Code 11 and a
symptom is present, Go to Quick Test Step 7.0.
1(0) or ^ Engine Running Self-Test indicates a FAULT.
2(0), 3(0), - no ANY - Go to part C of Engine Running Self-Test.
4(0) or 5(0) display CODE(S) - Always start with the first code displayed.
NO 5(0) 1(0) or Did not receive an engine I.D. code of 5(0) on the 7.3L
or no no ANY E40D Diesel application
display display CODE - Rerun Engine Running Self-Test to verify the above condition.
- - If condition is still present, Go to Pinpoint Test Step [D13].
98 NO ANY ^ Code 98 in place of the I.D. code indicates that the
DISPLAY CODE(S) vehicle is in FMEM (Failure Mode Effects
Management) and DID NOT PASS Key On Engine Off
Self-Test. Engine Running Self-Test will not initiate until
a PASS Code 11 is obtained in Key On Engine Off
Self-Test.
- Run Key On Engine Off Self-Test and address all codes displayed.
NO CODES DISPLAYED ^ Self-Test did not activate.
- Rerun Engine Running Self-Test to verify the above
CODES NOT LISTED condition.
- If condition is still present, Go to Pinpoint Test Step [QA1].