Posted on by

Electronic Control System ISM and QSM11 Engines – Fault Code Warning Lamps Do Not Illuminate

Symptom Tree  t084

This is symptom tree t084
Cause Correction

Idle shutdown or PTO shutdown features are activated

Turn the keyswitch to the OFF position for 30 seconds. Turn the keyswitch to the ON position and check fault code operation.
 

Fault code warning lamps are burned out

Check the warning lamps for voltage. Replace the bulbs if necessary. Refer to Procedure 019-046.
 

Fault code warning lamp circuit is malfunctioning

Check the fault code warning lamp circuit. Refer to Procedure 019-047.
 

Battery voltage supply to the electronic control module (ECM) has been lost

Check the battery connections. Check the fuses and the unswitched battery supply circuit. Refer to Procedure 013-009 in the Troubleshooting and Repair Manual, ISM, ISMe, and QSM11 Engines, Bulletin 3666322, and Procedures 019-198, 019-087 and 019-047.
 
Last Modified:  06-Jan-2004
Avatar photo

Published by Jack

Hello, I'm Jack, a diesel engine fan and a blogger. I write about how to fix and improve diesel engines, from cars to trucks to generators. I also review the newest models and innovations in the diesel market. If you are interested in learning more about diesel engines, check out my blog and leave your feedback.