What is the trouble code on Mack computer?
From Mack Information System: Message Identification MID: 128 (Abnormal), 142 (Abnormal)
When to call Mack truck service for code 6-4?
When a vehicle equipped with this ABS/ATC module is being diagnosed for an inactive code 6-4, contact Mack Trucks Service Engineering. Additional Symptoms: The engine will not start, if communication is lost on both the J1587 and J1939 data lines. If communication is lost on just the J1939 line, the engine will only run at 900 RPM.
What does the Check Engine light on a Mack truck mean?
The check engine light illuminates in your dash of your Mack Truck. Now, what do you do? DTC, SPN, MID, PID, FMI, OBD, DTCs, ECM, ACM, TCM. What do they mean? How can I understand what is wrong with your Mack Truck?
Is the V-MAC III data line still operational?
The V-MAC III system is designed to allow continued engine operation with the loss of the J1939 data line signal as long as the J1587 data line is still operational.
https://www.youtube.com/watch?v=EZjDCUEagjQ
What does blink code 6-4 mean on Mack truck?
Fault code 6-4 will set for some mismatches of VECU and EECU software levels. Blink code 6-4 will also set while the VECU is in the programming mode for Customer Data, Fleet Data, or Mack Data.
What is the wiring diagram for a Mack truck?
Document Release Status D-16194-85 SEE DCN Date Modification Count WIRING DIAGRAM INDEX, 12V NAME DESCRIPTION Page NAME DESCRIPTION Page AA-O POWER DISTRIBUTION 1/2 2 GD LIGHTING-FORWARD/SIGNAL (CXU,GU7,GU8) 30 AB-O POWER DISTRIBUTION 2/2 3 GF LIGHTING – TAIL/PERIMITER 31
What does V-MAC III engine and transmission do?
Circuit Description: The V-MAC III system uses the J1939 data line to control communication between the Vehicle Electronic Control Unit (VECU), Engine Electronic Control Unit (EECU), Anti-lock Brake System Control Unit, Allison Transmission Control Unit, and accessory systems, depending on vehicle model and option content.
How to clear code 9-2 engine and transmission?
Engine-to-Transmission Transition Connector (MID 128) Vehicle Electronic Control Unit (VECU) Fuse or Circuit Breaker Connections (MID 142) Clean, repair or replace as necessary. To clear code 9-2, turn the key switch ON, turn the key switch OFF for 6 seconds, then turn the key switch back ON.