Instruction Manual

48
Key On Engine Running (KOER) Test Results
KOER
CODES ACTION TO TAKE:
11* System pass. No problem found by computer during KOER Self-
(all except Test. The Self-Test Diagnostic Procedure is complete. If vehicle
high altitude) symptoms are still present, they are probably not related to the
computer system.
62* System pass. No problem found by computer during KOER Self-
(high altitude V-6 Test. The Self-Test Diagnostic Procedure is complete. If vehicle
or V-8 ONLY) symptoms are still present, they are probably not related to the
computer system.
65* System pass. No problem found by computer during KOER Self-
(high altitude Test. The Self-Test Diagnostic Procedure is complete. If vehicle
I-4 ONLY) symptoms are still present, they are probably not related to the
computer system.
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 3: Key On Engine
Running (KOER) Self-Test after every repair.
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.