Just maybe the system voltage is dropping badly when it tries to crank, and causing most of the errors. I always record all DTCs, then clear them to see what comes back & when. If there is no connection to that module, it will not even start the test. There are also Self test routines in most module that can be initiated by Forscan. This can be helpful for U DTCs, knowing which module has lost communication with the Power Steering Module, etc, could narrow it down to one failed module.
The full (WIndows) Forscan lists all the modules it can find, and tells you which module the DTCs are in. But it does not test all the stubs that lead to other modules on the bus (steering, ABS etc), nor the bus transceiver chips and processors. The 60 / 61 ohms shows the bus is physically intact from end to end, that is ECU to IC, including the connections to the ECU & IC pcbs. With a test meter at the OBD port across these pins there is a reading of 61 Ohms It is the best available system outside the Ford IDS system. Double check the battery and heavy wiring to the starter. If it cranks a bit, and the immobiliser LED is not flashing madly (it actually flashes out a code), then there is something else preventing starting. I was literally typing that at the very instant the reply from Daniel popped up on my screen!! The ones sold by tunnelrat have been recommended by others on this site, wired or wireless. The quality of these things varies hugely, especially wireless ones. So if it does not get as far as finding the ELM, then the problem is the ELM.
(OK) Found module: PCM - Powertrain Control Module (OK) Connection to vehicle has been established (OK) Connection to adapter has been established on COM1 The first few lines of a Forscan session I had are: When you try to get Forscan to connect to a car, it will first report on whether it can connect to the ELM. The immobiliser definitely does not disable the CAN bus, I had to use the CAN bus (via Forscan) to get the immobiliser dis-armed after I had the 2006 cluster fault. The odometer display will look strange, just dashes usually, and the immobiliser LED will flash quickly. If the immobliser remains on, it should not crank at all.
I thought about downloading Forscan and seeing if there was anything to be found in its fault codes and I have a well used ELM Bluetooth unit that appears compatible with Forscan, however when I plug the ELM unit in it does not appear to show any CAN activity.ĭoes the immobiliser shut down the CAN bus ? Having resoldered the joints it remains just the same, immobilized but will crank a couple of times before de-activating the starter circuit.