Pinpoint Test H: DTC U1000: 00
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Pinpoint Test H: DTC U1000: 00
Normal Operation
The Body Control Module B (BCM-B) controls the output of several vehicle systems by means of solid state drivers. When an overload occurs on any of these drivers, a DTC sets. The module also tracks the number of repetitive faults on each of these circuits. The module compares this number of overloads to 3 progressive thresholds established for each circuit.
At the each threshold, DTC U1000:00 sets along with the DTC associated with the affected circuit.
- DTC U1000:00 (Solid State Driver Protection Activated - Driver Disabled: No Sub Type Information)- a continuous DTC that sets when the BCM-B (Body Control Module B) has disabled an output circuit due to a repetitive fault that overloads said circuit. A corresponding DTC for the circuit in question is also set.
When DTC U3000:49 is set because the module has reached a third threshold and the BCM-B (Body Control Module B) has permanently disabled an output, a measurement using a digital multimeter of the affected output circuit is required to make sure the fault condition no longer exists.
This pinpoint test is intended to diagnose the following:
- Output circuit short
- BCM-B (Body Control Module B)
PINPOINT TEST H : DTC U1000: 00
H1 REVIEW THE DTCs
NOTICE: First follow the necessary diagnostics to resolve DTC U1000:00 and any other present DTCs (ignoring U3000:49). DTC U1000:00 is only present when there is another DTC due to software or circuitry issues that must be resolved before another self-test is run. DTC U3000:49 is only present once the final threshold has been met. Failure to correct the fault condition first may cause damage to the new BCM-B (Body Control Module B) , resulting in a repeat repair.
- Review the DTCs from the BCM-B (Body Control Module B) self-test.
Are any other DTCs present, besides U1000:00 or U3000:49?
Yes
REFER to the Body Control Module B (BCM-B) DTC chart Body Control Module. After the repair, GO to H2.
No
GO to H2.
H2 REPEAT THE BCM-B (Body Control Module B) SELF-TEST
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: BCM-B (Body Control Module B) Self-Test.
- Clear the DTCs and repeat the BCM-B (Body Control Module B) self-test.
Is DTC U3000:49 present?
Yes
INSTALL a new BCM-B (Body Control Module B). REFER to Body Control Module B (BCM-B) . TEST the system for normal operation.
No
The system is operating correctly at this time. The circuit short has been repaired.