PIN AS 2572291 - Caterpillar

code F366 will be shown whenever a conflict occurs in non-volatile memory locations for the F2/F1 shift constant.
Perform the Up Shift/Down Shift Function procedure as detailed in the topic Transmission (Programmable Upshift) of the Operation & Maintenance Manual listed under Operating The Tractor. The procedure will reset the memory constants. Also see the topic Mode 10 - Transmission Calibration Review And Programming in the Systems Operation section of this service manual (Function C7 and C8 is the Shift Constant). Expected Result: The fault code is not active.
YES, repair complete.
NO, go to Step 2.
Download latest control module software into all control modules. Expected Result: The fault code is active.
YES, go to Step 3.
NO, repair is complete. Calibrate transmission and three-point hitch.
Replace the Chassis Control Module (CCM). Repeat the Mode 10 - Calibration of Shift Constant procedure. Expected Result: The fault code is active.
YES, install the original CCM and repeat this troubleshooting procedure.
NO, go to Step 4.
Install the original CCM.Expected Result: The fault code is active.
YES, original CCM was faulty. Replace original CCM with new CCM. Repeat the Mode 10 - Calibration of Shift Constant procedure. Check fault codes. If fault code is not active, repair is complete. Download latest control module software into all modules. Calibrate transmission and three-point hitch.
NO, this fault code may have been caused by faulty connectors. Keep the original on the tractor. Clean all terminals on the CCM and reconnect. If fault code is not active, repair is complete. Download latest control module software into all modules. Calibrate transmission and three-point hitch.