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.