trouble codes
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
KOEO code DTC 111.
Continuous Memory codes DTC 327, 328 & 452.
DTC 327 & 328 says you have either bad wiring to the EVP sensor or a bad EVP sensor.
DTC 452 says you have a VSS problem. Could be a bad rear end, wiring to the VSS or a bad PSOM.
Continuous Memory codes DTC 327, 328 & 452.
DTC 327 & 328 says you have either bad wiring to the EVP sensor or a bad EVP sensor.
DTC 452 says you have a VSS problem. Could be a bad rear end, wiring to the VSS or a bad PSOM.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
How To Run The Engine Running Self-Test
DO
Deactivate Self-Test.
Start and run engine at 2,000 rpm for two minutes. This action warms up the HEGO sensor.
Turn engine off, wait 10 seconds.
Activate Self-Test.
Start engine.
After the ID code, depress and release the brake pedal if appropriate. See Special Note below.
After the ID code, within 1 to 2 seconds, turn the steering wheel at least one-half turn and then release it, if appropriate. See Special Note below.
If a Dynamic Response Code occurs, perform a brief wide-open throttle (WOT).
Record all service codes displayed.
DON'T
Depress the throttle unless a Dynamic Response Code is displayed.
Engine Running Self-Test Special Notes:
On vehicles equipped with the Brake On/Off Switch (BOO), the brake pedal MUST be depressed and released AFTER the ID code.
On vehicles equipped with the Power Steering Pressure Switch (PSPS), within 1 to 2 seconds after the ID code, the steering wheel must be turned at least one-half turn and released.
On vehicles equipped with E4OD transmission, the Overdrive Cancel Switch (OCS) must be cycled after the ID code.
The Dynamic Response code is a single pulse (or a 10 code on the STAR Tester) that occurs 6-20 seconds after the engine running identification code. (See APPENDIX: «Code Output Format».)
When/if the Dynamic Response code occurs, perform a brief wide-open throttle.
DO
Deactivate Self-Test.
Start and run engine at 2,000 rpm for two minutes. This action warms up the HEGO sensor.
Turn engine off, wait 10 seconds.
Activate Self-Test.
Start engine.
After the ID code, depress and release the brake pedal if appropriate. See Special Note below.
After the ID code, within 1 to 2 seconds, turn the steering wheel at least one-half turn and then release it, if appropriate. See Special Note below.
If a Dynamic Response Code occurs, perform a brief wide-open throttle (WOT).
Record all service codes displayed.
DON'T
Depress the throttle unless a Dynamic Response Code is displayed.
Engine Running Self-Test Special Notes:
On vehicles equipped with the Brake On/Off Switch (BOO), the brake pedal MUST be depressed and released AFTER the ID code.
On vehicles equipped with the Power Steering Pressure Switch (PSPS), within 1 to 2 seconds after the ID code, the steering wheel must be turned at least one-half turn and released.
On vehicles equipped with E4OD transmission, the Overdrive Cancel Switch (OCS) must be cycled after the ID code.
The Dynamic Response code is a single pulse (or a 10 code on the STAR Tester) that occurs 6-20 seconds after the engine running identification code. (See APPENDIX: «Code Output Format».)
When/if the Dynamic Response code occurs, perform a brief wide-open throttle.
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