OBD2 interface problem
#1
Lead Lap
Thread Starter
OBD2 interface problem
I got a new ELM327 USB OBD2 interface, which is unable to communicate with the ECU of my 98ES. I believe the problem is on the vehicle side, rather than in the tool. Have anyone already had this type of problem?
#3
Lead Lap
Thread Starter
In my 94 Camry I've been using the scantool_net v. 1.13 (freeware) and a ELM327 USB clone made in China. It works wonders. On my 98 ES, however, this system fails. I thought the culprit might be interface, so I ordered an updated one (less than 10 bucks, by the way) to no avail. I also tried the ProScan V. 5.6 (software) and as a result it opens the port, detects the interface but it is unable to initialize it.
#4
Super Moderator
I ended up getting an ELMScan5 Compact for like about $59 on Amazon and it works fine with scantool and even Digimoto for my RX300, that's got to have similar ECM firmware given your 98 and my 99 have a similar but not 100% the same 1MZFE engine. I have read elsewhere on other forums about issues involving those USB Clones. A friend of mine who lived in Mexico City got one of those clones and it would not work on a 2003 Toyota Camry (that was the first model year for Toyota down there), despite my OBD2 scanner working and of course Toyota's factory scanner.
#6
Anybody know what protocol the ES uses? I just ordered one of these off of ebay and now I'm worried it wont work after reading this. I thought I had read somewhere thats its the ISO 9141 protocol.
#7
Lead Lap
Thread Starter
SAE J1850 PWM (41.6 kbaud)
SAE J1850 VPW (10.4 kbaud)
ISO 9141-2 (5 baud init, 10.4 kbaud)
ISO 14230-4 KWP (5 baud init, 10.4 kbaud)
ISO 14230-4 KWP (fast init, 10.4 kbaud)
ISO 15765-4 CAN (11 bit ID, 500 kbaud)
ISO 15765-4 CAN (29 bit ID, 500 kbaud)
ISO 15765-4 CAN (11 bit ID, 250 kbaud)
ISO 15765-4 CAN (29 bit ID, 250 kbaud)
Supported Software :
Scantool_net113win
EasyOBDII
OBD2Spy
ScanMaster-ELM
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