- #K DCAN CABLE AUTOZONE UPGRADE#
- #K DCAN CABLE AUTOZONE ANDROID#
- #K DCAN CABLE AUTOZONE BLUETOOTH#
- #K DCAN CABLE AUTOZONE PROFESSIONAL#
- #K DCAN CABLE AUTOZONE WINDOWS#
BT and WiFi devices are only recommended for mobile platforms (iOS and Android).Īlso, important note about adapters with mechanical HS/MS switch: in addition to the fact it is not very convenient to switch it manually, it may be not possible to perform some operations with this type of adapter.
#K DCAN CABLE AUTOZONE WINDOWS#
So in general case we recommend to use USB for Windows version of FORScan, where it is possible.
#K DCAN CABLE AUTOZONE BLUETOOTH#
And this problem is actual not only for "clones", but also for "original" adapters (OBDLink MX WiFi and Viaken VScan Bluetooth are most obvious examples). The fact is that wireless interfaces used in ELM327 family of adapters are much less reliable than USB interface. We will create a dedicated article about so-called "clone problem". Not original adapters in general case have lower quality than original ones. Two things are important for reliability: So in this case the response time is minimal, and baud rate is limtied by the CAN bus one. Overal min.response time = 2 ms + 0 ms = 2 ms Let's assume CAN bus response time is 0 ms, and adapter has 2 ms of response time and 2 Mpbs baud rate. Reponse time is less than 20% higher than maximum possible for this car, and transfer speed is also limited by the bus.Įxample 3: Ford Fusion 2015, bus CAN. In this case the adapter is OK, because the bus itself is very slow. Overal min.response time = 40 ms + 250 ms = 290 ms But if you plan to read PIDs in real-time (or as much close to it as possible) or perform programming (actual for CAN bus), then this adapter is a bad choice.Įxample 2: Mazda 323 2001, bus ISO. If reading DTC and some PIDs is the only objective you have, it is not too important. Is that bad? Well, it depends on your goals. So every machine byte is represented in 2 transferred bytes.Īs we can see, the adapter significantly limits the overal system peformance in this example (in case of cars with CAN bus, like Mondeo Mk4 or Mk5, the test results would be much worse). Note: we divide interface baud rate by two because ELM327 family adapters exchange data in text format. Overal min.response time = 40 ms + 20 ms = 60 ms According to the table 2.1 adapter's min response time is 40 ms, baud rate is 38400 bps. bus response time is 20 ms, bus baud rate is 41600 bps. According to the table 1.1, let's assume min. baud rate / 2, Bus baud rate)Įxample 1: Ford Mondeo Mk3 PCM, bus J1850. adapter response time + Min.bus response time Overall system performance can be easily estimated by adapter's performance and bus parameters as the following: Uses cheap BT chip so may freeze on some cars.
#K DCAN CABLE AUTOZONE UPGRADE#
Recommended to downgrade to stable 4.1.1 or upgrade to stable 4.5.1 Last versions of this adpater have buggy firmware 4.3.x. WiFi interface works unstable - it freezes and times out.
#K DCAN CABLE AUTOZONE ANDROID#
Recommended for FORScan Lite for iOS, Android Recommended only for iOSĬan be used only with FORScan Lite for iOS Table 2.1 - Adapters' performance Adapter These parameters directly affect connection time, parameter (PIDs) reading frequence, overall programming time Max.interface baud rate - max possible data transfer baud rate between computer and adapter interface respone time (minimal response time or ping) - minimal possible time from the moment request to adapter is sent to the moment the response from adapter is received Two parameters are mainly important for performance: Table 1.3 - Ford protocols by adapters Chip Mondeo Mk3 after restyling - J1850, ISO9141, HS-CAN, MS-CAN Simplest and quite reliable way to find out what protocols are supported in your car is to make a photo of the OBDII jack. Some models used SAE J1850 PWM as primary S - auxiliary protocol (not mandatory for FORScan) Table 1.2 - Ford protocols by model generations Table 1.1 - Ford protocols OBDII name / Ford name J2534 Passthru devices will be addressed in a separate article. This article reviews only ELM327 familty of adapters. ELM327 family is recommended for amateur and semi-professional usage.
#K DCAN CABLE AUTOZONE PROFESSIONAL#
Note: For professional work we would recommend to consider purchasing J2534 Passthru adapters that support Ford protocols. In this article we have tried to address most important issues of the choice problem in most compact way. The problem is that there is no easy answer, as there is no ideal adapter that would fit best every specific case. We are asked every day about adapter's choice.