I'm using an OBD reader with Elm327 v1.5 chip. I have made a software that reads vehicle speed (pid 010d). This software works ok on VW Transporter and some other cars but not on Isuzu D-max MY 2013->
The software tries the different protocols by selecting one protocol and then requesting pid 010d. If getting a valid response the selected protocol is kept and used when requesting next pid.
The problem with Isuzu D-Max 2013-> is that I do not get any valid response on any protocol. I have also tested with a software called OBD Auto Doctor and I got the same result.
The tested protocols and response messages are:
SAE J1850 PWM (41.6 kbit/s) Resp: NO DATA
SAE J1850 VPW (10.4 kbit/s) Resp:FB ERROR
ISO 9141-2 (5 baud init, 10.4 kbit/s) Resp:INIT: BUS ERROR
ISO 14230-4 KWP (5 baud init, 10.4 kbit/s) Resp: INIT: BUS ERROR
ISO 14230-4 KWP (fast init, 10.4 kbit/s) Resp: INIT: BUS ERROR
ISO 15765-4 CAN (11 bit ID, 500 kbit/s) Resp: CAN ERROR
ISO 15765-4 CAN (29 bit ID, 500 kbit/s) Resp: CAN ERROR
ISO 15765-4 CAN (11 bit ID, 250 kbit/s) Resp: CAN ERROR
ISO 15765-4 CAN (29 bit ID, 250 kbit/s) Resp: CAN ERROR
Is there anyone that has experience of ELM327 an Isuzu Dmax 2013 or newer. What protocol is this vehicle using? And does the vehicle follow the OBD standard?
