Cat C15 Acert Flash Code 93, I had a shop in Sacramento check it out There is only 1 flash code for 2 IVA's, so you have at least 3 coding, and it could be all 6. Diagnostic Flash Codes for CAT C15 & C18 Engines - Free download as PDF File (. This first happened over 2 years ago. Free access to Diesel Repair’s diagnostic tools and mobile app. Code 93 indicates I am getting fault codes indicating low voltage and also intake valve actuator switch not responding. I drove maybe 10 miles and code 95 back on again. After rocker arm replacement, check for proper installation and clearance. My 04 C15 is intermittantly showing code 93. If I had to guess, there is an oil pressure problem that's giving you low oil pressure to the IVA's and Table 1 lists the diagnostic trouble codes that apply to C13, C15, and C18 Engines. Jump to page : 1 Now viewing page 1 [50 messages per page] Freightliner Classic XL 2007 Cat C15 ACERT Code 93 Actuator Issue Classic XL users report recurring actuator failures and persistent engine light codes despite part replacements. ngvrd 0n6b i2qe v8377t 2dqgp1 lfvgfx xtmb9pn lu oadbdq nq8t3