Suzuki ECUs      

33920-59B70

Updated 29th June 2009

Introduction

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

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