Self-Test Service Code Chart - Manual Revisions
89Ford20ENGINE EMISSIONS DIAGNOSIS SHOP MANUAL- 1988-SECTION 16-SELF-TEST SERVICE CODE
CHART REVISION
ENGINE EMISSIONS DIAGNOSIS SHOP MANUAL- 1989-SECTION 14-SELF-TEST SERVICE CODE CHART REVISION
Article No. 89-12A-36
LIGHT TRUCK: 1988-89 AEROSTAR, BRONCO II, RANGER
ISSUE: The Key On Engine Running Self-Test Code 18 does not indicate a "P1" Pinpoint Test Step Direction for 2.9L EFI and 3.0L EFI engines in the charts on page 16-13 of the 1988 Volume H and page 14-15 of the 1989 Volume H.
ACTION: Refer to the pages following this TSB article for the updated charts which provide the correct Step direction. This information should be inserted in your 1988 Engine Emissions Diagnosis Manual, page 16-13 and 1989 Engine Emissions Diagnosis Manual, page 14-15.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 680000
EEC-IV - Quick Test - All Engines 1988 16-13
QUICK TEST: Engine Running 5.0
Self-Test
16-14 1988 EEC-IV - Quick Test - All Engines
QUICK TEST: Continuous 6.0
Self-Test
A CONTINUOUS MEMORY CODES
SPECIAL NOTES:
^ Verify that a Pass Code 11 was received in both Key On Engine Off and Engine Running Self-Tests before continuing with this test.
^ Refer to the Appendix for a detailed description of how to use the Continuous Monitor Mode.
DETERMINING THE CONTINUOUS MEMORY CODES TO BE SERVICED
^ Refer to the Continuous Memory Codes recorded in Quick Test Step 3.0 A.
^ The cause of some of the Continuous Memory Codes may have been eliminated during either Key On Engine Off or Engine Running Self-Test service.
^ Address only those Continuous Memory Codes for which a similar code has not been previously serviced.
^ Go to Part B of Continuous Self-Test.
EEC-IV - Quick Test - All Engines 1989 14-15
QUICK TEST: Engine Running 5.0
Self-Test
14-16 1989 EEC-IV - Quick Test - All Engines
QUICK TEST: Continuous 6.0
Self-Test
A CONTINUOUS MEMORY CODES
SPECIAL NOTES:
^ Verify that a Pass Code 11 was received in both Key On Engine Off and Engine Running Self-Tests before continuing with this test.
^ Refer to Quick Test Appendix for a detailed description of how to use the Continuous Monitor Mode.
^ If Continuous Memory is a PASS code 11 and a symptom is present, GO to Quick Test Step 7.0.
DETERMINING THE CONTINUOUS MEMORY CODES TO BE SERVICED
^ Refer to the Continuous Memory Codes recorded in Quick Test Step 3.0 A.
^ The cause of some of the Continuous Memory Codes may have been eliminated during either Key On Engine Off or Engine Running Self-Test service.
^ Address only those Continuous Memory Codes for which faults have not been previously serviced. If the fault has been serviced in Steps 3.0 for 4.0, CLEAR Continuous Memory. Refer to Quick Test Appendix.
^ Go to part B of Continuous Self-Test.