DTC B1000
Diagnostic Instructions
DTC Descriptors
| DTC B1000 00: Electronic Control
Unit |
| DTC B1000 08: Electronic Control Unit
Performance - Signal Invalid |
| DTC B1000 0F: Electronic Control Unit
Signal Erratic |
| DTC B1000 12: Electronic Control Unit Low
Input |
| DTC B1000 2B: Electronic Control Unit
Missing Reference |
| DTC B1000 34: Electronic Control Unit RAM
Malfunction |
| DTC B1000 35: Electronic Control Unit ROM
Malfunction |
| DTC B1000 36: Electronic Control Unit
EEPROM Performance/Malfunction |
| DTC B1000 37: Electronic Control Unit
Software Malfunction |
| DTC B1000 38: Electronic Control Unit
Supervision Software Malfunction |
| DTC B1000 39: Electronic Control Unit
Internal Malfunction |
| DTC B1000 43: Electronic Control Unit
EEPROM Incorrect Programming |
| DTC B1000 46: Electronic Control Unit
Configuration Not Programmed |
| DTC B1000 4A: Electronic Control Unit
Programming Checksum Error |
| DTC B1000 56: Electronic Control Unit Too
Many Transitions |
| DTC B1000 73: Electronic Control Unit
Parity Error |
| DTC B1000 F0: Electronic Control Unit |
| DTC B1000 F1: Electronic Control Unit |
| DTC B1000 F2: Electronic Control Unit |
| DTC B1000 F3: Electronic Control Unit |
Circuit/System Description
The internal fault detection is handled inside the control
module. The symptom byte listed in the DTC Descriptor is for
engineering reference only. No external circuit diagnosis is
involved.
Conditions for Running the DTC
The module runs the program to detect an internal fault when
power up is commanded. The only requirements are voltage and
ground. This program runs even if the voltage is out of the valid
operating range.
Conditions for Setting the DTC
The module has detected an internal malfunction.
Action Taken When the DTC Sets
The module refuses all additional inputs.
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. |
Diagnostic Aids
| • |
This DTC may be stored as a
history DTC without affecting the operation of the module.
|
| • |
If stored only as a history
DTC and not retrieved as a current DTC, do not replace the
module. |
| • |
If this DTC is retrieved as
both a current and history DTC, replace the module that set the
DTC. |
Circuit/System Verification
If this DTC is retrieved as a current DTC, replace the module
that set the DTC.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the repair.
Control Module References for module replacement, setup, and
programming
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