Dtc B1001 - Suzuki XL7 2007 Service Manual

DTC Descriptors
DTC B1000 33: Electronic Control Unit (ECU)
Performance Special Memory Failure
DTC B1000 34: Electronic Control Unit (ECU)
Performance RAM Integrity
DTC B1000 35: Electronic Control Unit (ECU)
Performance ROM Integrity
DTC B1000 36: Electronic Control Unit (ECU)
Performance EEPROM Integrity
DTC B1000 39: Electronic Control Unit (ECU)
Performance Internal Electronic Failure
DTC B1000 43: Electronic Control Unit (ECU)
Performance EEPROM Error
Circuit/System Description
The internal fault detection is handled inside the control
module. No external circuits are 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 the DTC set for.
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 - Vehicle
Diagnostic Information: " after completing the repair.
"Control Module References: " for the non-
communicating module replacement, setup, and
programming
Data Communications:

DTC B1001

Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle
Diagnostic Information: " prior to using this diagnostic
procedure.
• Review "Strategy Based Diagnosis: " for an overview
of the diagnostic approach.
• "Diagnostic Procedure Instructions - Vehicle
Diagnostic Information: " provides an overview of
each diagnostic category.
DTC Descriptors
DTC B1001 00: Option Configuration Error
DTC B1001 45: Option Configuration Error Variant Not
Programmed
DTC B1001 4B: Option Configuration Error Calibration
Not Learned
Circuit/System Description
The internal fault detection is handled inside the control
module. No external circuits are involved.
Conditions for Running the DTC
The only requirements are voltage and ground.
Conditions for Setting the DTC
B1001 00
The module has detected that the options are not
programmed correctly.
B1001 45
The module has detected that the restraints ID number
is not programmed.
B1001 4B
The module has detected that the axle/tire calibration is
not programmed.
Conditions for Clearing the DTC
• A current DTC clears when the condition is no longer
present.
• A history DTC clears when the module ignition cycle
counter reaches the reset threshold, without a repeat
of the malfunction.
10B-19