Question about 2004 Suzuki Verona
Are you in USA
is your tool 2004 or newer, or CAN-bus certified.?
there are 2 fuses that can blow, and killl pin 16 on the OBD2 connector this is a fact. and disables all scan tools. if true.
we use a volt meter on pin 16 first. omg, its 0v.
in 1min. work. not guessing for going mad.
then make sure your tool (unstated brand or model by you)
if not in the USA< the answers will be different.
if 12vdc is on pin 16 then then the wrong scan tool is being used.
99.9% of the time.
Tell us what pins are populated on your OBD2 DLC port. 16pins.
I can the tell you whats up.
Posted on Dec 23, 2016
Hello just a guess here but by any chance is the lighter still working check for a blown fuse i have had this problem in the past and have traced it back to a fuse to the lighter or something crazy like that and as soon as i fixed this then i got communication back to the PCM. They run the power for the OBD connector off of other thing in the car
Posted on Dec 14, 2016
Testimonial: "Thanks gay so i have power iin pin # 16 and two ground in pin 4&5 of the data coneector im think im have damage pcm I need check the wires first so iineed the diagram"
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Posted on Jan 02, 2017
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Jan 27, 2017 | Cars & Trucks
Aug 24, 2015 | 2004 Suzuki Verona
Aug 21, 2015 | 2004 Suzuki Verona
The Instrument Panel Module (IPM)
The Rear Integration Module (RIM)
Each of the 3 body control modules integrate a number of functional systems under the control of a single module. Each module is connected to the Class 2 serial data circuit, many of the control functions are implemented by Class 2 messages.
Dash Integration Module (DIM)
The various DIM input and output circuits are described in the corresponding functional areas as indicated on the DIM electrical schematics.
The DIM functions include the following:
Class 2 communication requiring DIM interaction.
Control of exterior lamps.
Control of front fog lights.
Control of the headlights.
Headlamps on with wiper input.
Hood ajar switch input w/export.
Horn relay control.
Interior lamps incandescent dimming.
Low side temperature for HVAC compressor.
Power moding control over Class 2 serial data circuit.
Reverse lockout solenoid control.
Steering wheel controls input.
Storage of the clock settings and, sending a message out on the class 2 serial data circuit in response to requests from other modules.
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle the PMM is the DIM. The PMM receives 4 signals from the ignition switch.
To determine the correct power mode the PMM uses the following circuits:
Ignition 1 voltage
Ignition 3 voltage
You have no idea what your getting yourself into when messing with these thing's ! You mess with the wrong thing an your vehicle will never work again , not for you anyway ! These modules all communicate together on a class 2 serial data network ,
The data link connector (DLC) allows a scan tool to communicate with the class 2 serial data line. The serial data line is the means by which the microprocessor-controlled modules in the vehicle communicate with each other. Once the scan tool is connected to the class 2 serial data line through the DLC, the scan tool can be used to monitor each module for diagnostic purposes and to check for diagnostic trouble codes (DTCs). Class 2 serial data is transmitted on a single wire at an average of 10.4 kbps. This value is an average; class 2 uses a variable pulse width modulation to carry data and depending on the message it may operate faster or slower. The bus will float at a nominal 7 volts during normal operation. Each module can pull this lower during the transmission. The bus is not at battery positive voltage or ground potential during normal operation. When the ignition switch is in RUN, each module communicating on the class 2 serial data line sends a state of health (SOH) message every 2 seconds to ensure that the module is operating properly. When a module stops communicating on the class 2 serial data line, for example, if the module loses power or ground, the SOH message it normally sends on the data line every 2 seconds disappears. Other modules on the class 2 serial data line, which expect to receive that SOH message, detect its absence; those modules in turn set an internal DTC associated with the loss of SOH of the non-communicating module. The DTC is unique to the module which is not communicating; for example, when the inflatable restraint sensing and diagnostic module (SDM) SOH message disappears, several modules set DTC U1088. Note that a loss of serial data DTC does not normally represent a failure of the module that set it.
On some vehicles, if the powertrain control module (PCM) is unable to communicate with the vehicle theft deterrent (VTD) system after the vehicle has started, the PCM will consider the VTD system to be malfunctioning. The PCM will enter a fail enable state and will command the security indicator to illuminate. When the PCM is in a fail enable state, the vehicle will NOT stall or stop running. If the PCM is in a fail enable state when the ignition is switched OFF, the PCM will remain fail enable until communications with the VTD system has been restored. When the PCM is in a fail enable state, the VTD system is NOT active and the vehicle will start. This feature is NOT available on all GM vehicle lines.
Data Link Connector (DLC)
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