Suzuki ECUs      


Updated 29th June 2009


The 59B70 is from a later 16V Vitara, the processor is an H8/532 variant (MH5328CP10). This version is a masked ROM, the datasheet does not describe any method of reading the memory but there are two undefined operating modes, one of which may be a Special Test Mode. There are other versions of this ECU that use a One Time Programmable (OTP) memory, OTP devices can be read using a standard EPROM programme with a readily available adapter. Despite the name 'One Time Programmable' these chips can be reprogrammed but can not be erased so address overloading must be used to relocate tables when remapping.

59B70 PCB

Key Words

ECU ECM engine management control suzuki geo vitara sidekick tracker DSM MH6211 MH6111 air temperature sensor repair caps ignition map 3d performance tuning diy efi water temperature manifold pressure software pcb map reprogram datalog o2 sensor lambda egr tbi mpi repair rhinopower