PRE-RELEASE
DTC B101D
| DTC B101D |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptor |
DTC B101D 00
Electronic Control Module Hardware
DTC B101D 04
Electronic Control Module - Hardware Open
DTC B101D 08
Electronic Control Module, Hardware Performance - Invalid Signal
DTC B101D 0F
Electronic Control Module, Hardware - Instable Signal
DTC B101D 12
Electronic Control Module, Hardware - Low Input Value
DTC B101D 13
Electronic Control Module, Hardware - Low Voltage/High Temperature
DTC B101D 14
Electronic Control Module, Hardware - High Voltage/Low Temperature
DTC B101D 1A
Electronic Control Module, Hardware Performance - Bias Level Out of Range
DTC B101D 2B
Electronic Control Module, Hardware - No Reference
DTC B101D 2C
Electronic Control Module, Hardware -
DTC B101D 31
Electronic Control Module, Hardware - Checksum Error
DTC B101D 32
Electronic Control Module, Hardware - General Memory Error
DTC B101D 34
Electronic Control Module, Hardware - RAM Malfunction
DTC B101D 35
Electronic Control Module, Hardware - ROM Malfunction
DTC B101D 36
Electronic Control Module, Hardware - EEPROM Performance/Malfunction
DTC B101D 37
Electronic Control Module, Hardware - Software Error
DTC B101D 38
Electronic Control Module, Hardware - Malfunction, Monitoring Software
DTC B101D 39
Electronic Control Module, Hardware - Internal Fault
DTC B101D 3A
Electronic Control Module, Hardware - Incorrect Component Installed
DTC B101D 3B
Electronic Control Module, Hardware - Malfunction, Self-Test
DTC B101D 3C
Electronic Control Module, Hardware - Internal Communication Error
DTC B101D 43
Electronic Control Module, Hardware - EEPROM Incorrectly Programmed
DTC B101D 73
Electronic Control Module, Hardware - Parity Error
DTC B101D F0
Electronic Control Module, Hardware
DTC B101D F1
Electronic Control Module, Hardware
| 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 |
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The control 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.
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The keyless entry control module will generate this DTC with symptom byte 39 when the antenna for the keyless entry control module is activated.
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| Conditions for Setting the DTC |
The control module has detected an internal fault.
| Action Taken When the DTC Sets |
The control module refuses all additional inputs.
| Conditions for Clearing the DTC |
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A current DTC clears when the malfunction is no longer present.
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A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
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| Diagnostic Aids |
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This DTC may be stored as a history DTC without affecting the operation of the control module.
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Do not replace a control module based only on DTC B101D being set in history with the exception of the following control modules:
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K36 Inflatable Restraint Sensing and Diagnostic Module (SDM)
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K85 Passenger Presence Detection Module
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If DTC B101D is set as current, replace the appropriate control module.
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| Circuit/System Verification |
Verify that DTC B101D is not set.
If the DTC was generated with symptom byte 43, program the control module that set the DTC. If the DTC recurs, replace the control module that triggered the DTC. If the DTC is generated with another symptom byte, replace the control 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
