Instruction Manual

44
Have your vehicle professionally
serviced. Codes indicate problems
found by the computer.
or,
Repair the vehicle yourself using
service codes to help pinpoint the
problem. Refer to Test Results
Chart.
Key On Engine Off (KOEO) Test Results
KOEO
CODES ACTION TO TAKE:
11* System pass. No problem found by computer during KOEO Self-
(all except Test. Go to SELF-TEST PART 3: Key On Engine Running
high altitude) (KOER) Self-Test.
62* System pass. No problem found by computer during KOEO Self-
(high altitude V-6 Test. Go to SELF-TEST PART 3: Key On Engine Running
or V-8 ONLY) (KOER) Self-Test.
65* System pass. No problem found by computer during KOEO Self-
(high altitude Test. Go to SELF-TEST PART 3: Key On Engine Running
I-4 ONLY) (KOER) Self-Test.
Any Code(s) Codes indicate system problems are present now. Write down all
codes. Refer to vehicle service manual for code troubleshooting
charts and repair procedures. Repeat PART 2: Key On Engine
Off (KOEO) Self-Test after every repair. Do not proceed to SELF-
TEST PART 3 until a system pass code is received.
No Codes You have a problem which must be repaired before proceeding.
Received Refer to the vehicle service manual “Self-Test Not Functional” (or
(STO light similar title) troubleshooting chart.
always
on or off)
*Note: “High Altitude” refers to vehicles with computer adjusted for operation at high
elevations such as in Denver, Colorado.