VUE AWD V6-3.5L VIN 4 (2004)
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I/O check
Any faults detected during the initialization self-test shall generate a DTC. All nodes also continuously perform a self-test while in an active state.
DTCs and their associated telltales will set as a result of unprogrammed or unlearned information.
DTCs, which are defined for system configuration (e.g. Vehicle Option Content not programmed) do not support the history status bit (set =0). Warning
indicator bit is also set, when applicable, while this DTC is present.
Action Taken When the DTCs Sets
The module suspends all message transmission.
The module uses default values for all parameters received on the serial data circuits.
The module inhibits the setting of all other communication DTCs.
Conditions for Clearing the DTC
A current DTC clears when the malfunction is no longer present.
A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Circuit/System Verification
Refer to Data Link References to determine which serial data system is used for a specific module.
The DTCs cannot be retrieved with a current status. Diagnosis is accomplished using the following symptom procedures:
Scan Tool Does Not Communicate with High Speed GMLAN Device in SI.
OR
Scan Tool Does Not Communicate with Low Speed GMLAN Device in SI.
DTC U1300, U1301, or U1305
Circuit Description
Modules connected to the Class 2 serial data circuit monitor for serial data communications during normal vehicle operation.
Operating information and commands are exchanged among the modules. In addition to this, Node Alive messages are transmitted by each module on
the Class 2 serial data circuit about once every 2 seconds. When the module detects one of the following conditions on the Class 2 serial data circuit for
approximately 3 seconds, the setting of all other Class 2 serial communication DTCs is inhibited and a DTC will set.
Conditions for Running the DTCs
Voltage supplied to the module is in the normal operating voltage range.
The vehicle power mode requires serial data communication to occur.
Conditions for Setting the DTCs
No valid messages are detected on the Class 2 serial data circuit.
The voltage level detected on the Class 2 serial data circuit is in one of the following conditions:
