The PCI Bus failure modes are broken down into two categories. Voltage on the bus should pulse between zero and about seven and a half volts. The 12v square wave selection on the 20-volt scale provides a good view of the bus activity. The preferred method is to use the DRBIIIt lab scope. Since there is only voltage present when the modules transmit and the message length is only about 500 milliseconds, it is ineffective to try and measure the bus activity with a conventional voltmeter. The bus messages are transmitted at a rate averaging 10800 bits per second. The bus voltage is at zero volts when no modules are transmitting and is pulled up to about seven and a half volts when modules are transmitting. Connections are made in the harness using a splice.Įach module provides its own bias and termination in order to transmit and receive messages. Additional tracer colors may be added to the yellow in order to distinguish between different module connections. The PCI bus circuit is identified as D25 and is violet with a yellow tracer. "The Programmable Communication Interface or PCI Bus is a single wire multiplexed network capable of supporting binary encoded messages shared between multiple modules. He evidently doesn't know whats important. That's a crucial piece of information! If you had noted in the original post, it would have saved all the question and answer crap the last 9 days. Oh, I forgot to mention.Where my odometer reading should be, it reads "No BuS". ignition switch ON-OFF-ON-OFF-ON (without starting the engine).Ģ. Since it sets the Check Engine Light, what codes do you get?ġ. Yes, Check Engine light is automatic fail. Not to mention, ALL gauges stop working intermittently, I have no interior lights, nearly every idiot light on the dash comes on & off, and when I start it, it usually shuts off at least once right after starting, like the security key wasn't used.
Wellll.It won't pass SMOG because it sends a Check Engine signal, which they said is an automatic fail, but emissions-wise, it's perfect. To complete the picture, exactly what does your truck NOT do, that makes your dealership think you need one of these modules? The name of the module and its location depend on those two pieces of information. In this whole thread, you haven't stated what year and model Dakota you have.
The actual part name is a Time and Alarm module Need more info on your R/T.Options & such. Seany B can your buddy get an electronic control modulle (ECM) for a 2002 R/T ?
#2003 dodge dakota ctm drivers#
It is behind the drivers side kick panel. WTF? I have a buddy that can hook me up on parts, and I know about taking it in for programming.Ĭentral Timing Module or CTM. Stealer says I need a new Body Control Module.Would this go by any other names? I have heard things like Central Timing Module, and Diagnostic Module.
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