Actron Ford Code Scanner CP9015 - Manual (Page 10)

10
EEC-IV System
Using the Code Scanner (EEC-IV Systems).
Complete Description for Reading and Using Service Codes.
Do This First
This section shows you how to use the
Code Scanner for:
• Running tests of the engine computer
system. (Engine off, ignition timing
and engine running tests.)
• Reading service codes to pinpoint
problem causes.
Before using this section:
– Read Sections 1 and 2 to learn
about service codes and the Code
Scanner tool.
– Read Section 3 to find the location
of the Self-Test connector in your
vehicle. The connector type will tell
you whether you have an EEC-IV
system or an MCU system.
– Read this section (4) if you have an
EEC-IV system. Use Section 7 if you
have an MCU system.
Self-Test Summary
The Self-Test procedure (also called
“Quick Test”) involves engine off and
engine running tests. The entire
procedure is summarized in the chart.
Each part is fully explained on the
following pages.
IMPORTANT: All parts must be
performed as shown for accurate
test results!
Part 1: Test Preparation.
• Safety First! Follow all safety rules.
• Perform Visual Inspection. This often
reveals the problem.
• Prepare Vehicle. Engine must be
thoroughly warmed-up.
Part 2: To Key On Engine Off (KOEO)
Self-Test.
• Get service codes to help pinpoint
problems.
Part 3: Check Engine Timing.
• Verify correct “base” timing (no
computer
control) before doing next part.
Part 4: Do Key On Engine Running
(KOER) Self-Test.
• Get more service codes to pinpoint
problems found during engine
operating conditions.
Part 5: Evaluate/Erase “Continuous
Memory” Codes
• Helps locate intermittent problems.
• Removes service codes stored in
computer memory.