Code
B1014
HUMMER
B — Body
Program ROM Checksum Error
Views:
UK: 11
EN: 18
RU: 12
AI status
Completed
Completed
100%
Causes
- Corrupted or altered program/firmware in the affected module (ROM/Flash/EEPROM)
- Interrupted or failed module reprogramming (power loss during update)
- Low or unstable battery/vehicle voltage during programming or normal operation
- Internal memory or processor fault in the control module
- Poor or corroded power, ground, or data connections to the module
- Faulty communication on the vehicle network (CAN bus) preventing proper checksum verification
Symptoms
- Relevant module may report itself inoperative or show incorrect behavior
- Warning messages on dash related to affected system (body network, infotainment, HVAC, etc.)
- Loss of specific features controlled by the module (doors, lighting, seats, etc.)
- Stored B1014 trouble code and possibly related communication or memory fault codes
- Module may not respond to diagnostic requests or may show invalid software/part numbers
What to check
- Record all stored DTCs and freeze frame data with a capable scan tool; note affected module ID and software/calibration numbers
- Verify vehicle battery state-of-charge and system voltage (should be >=12.6V; >13V during programming when possible)
- Inspect connector(s) and wiring to the affected module for corrosion, bent pins, water intrusion, or damage
- Check module power and ground circuits for proper voltage and low resistance to chassis ground
- Use scan tool to read module identification information: part number, software/calibration ID, build date, and checksum/version fields if available
- Check network communication (CAN) for errors — use oscilloscope or a scan tool to verify messages and bus integrity
Signal parameters
- Module software/part number (SW/PN) and calibration ID
- Stored checksum or ROM integrity flag (if available on scan tool)
- Battery/ignition voltage at the module (V)
- CAN bus status/errors (bus error counters, message frequency)
- Module response to diagnostic queries (timed responses, negative ACKs)
- Last programming date/time and technician tool ID (when supported)
Diagnostic algorithm
- Retrieve and save all DTCs from the affected module and other network modules; note time/date and freeze-frame data. Do not clear codes yet.
- Verify battery voltage and health. Charge battery or connect a stable DC power supply so voltage remains stable (recommended >12.6V; some procedures require >13V).
- Visually inspect module connectors and wiring for corrosion, moisture, damaged pins, or loose connections. Repair any issues and re-seat connectors.
- Check module power and ground with a multimeter: verify key-on and crank voltages, and measure resistance to chassis ground. Repair poor connections.
- Scan the module for software/part numbers, checksum states, and any flash memory error counters. Compare installed calibration to factory reference if available.
- Verify CAN/communication bus integrity (use scan tool or scope). Repair any bus faults before attempting reprogramming.
- If hardware connections and bus are good, attempt to reprogram the module with factory-correct firmware using OEM factory scan tool or approved reflash process. Follow manufacturer-specific sequence and security procedures.
- If reprogramming succeeds, clear codes and perform a power cycle. Re-scan for codes and exercise affected functions to confirm normal operation.
- If reflash fails repeatedly or tool reports memory/processor faults, replace the control module per OEM procedure. Ensure any required coding or VIN programming is completed after replacement.
- After repair or replacement, perform full system scan, confirm software levels, clear codes, and road-test to ensure the issue is resolved. Document the programming session and battery condition during the work.
Likely causes
- Failed or incomplete reflash/update of the module (most likely)
- Low battery or poor charging system during a previous programming event
- Module internal memory/processor failure (next most likely if reflash repeatedly fails)
- Corroded/loose power or ground connection causing intermittent writes
- Wrong software/corrective package applied (incompatible ROM)
- Bus communication errors preventing checksum validation
Fault status
Status
Program ROM checksum mismatch detected on module — firmware/flash integrity check failed. Possible corrupted memory or failed programming event.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
Similar codes
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Code
B1014
LAND ROVER
B — Body
Switch of recirculation
Views:
UK: 10
EN: 13
RU: 9
AI status
Completed
Completed
100%
Causes
- Corrupted or altered program/firmware in the affected module (ROM/Flash/EEPROM)
- Interrupted or failed module reprogramming (power loss during update)
- Low or unstable battery/vehicle voltage during programming or normal operation
- Internal memory or processor fault in the control module
- Poor or corroded power, ground, or data connections to the module
- Faulty communication on the vehicle network (CAN bus) preventing proper checksum verification
Symptoms
- Relevant module may report itself inoperative or show incorrect behavior
- Warning messages on dash related to affected system (body network, infotainment, HVAC, etc.)
- Loss of specific features controlled by the module (doors, lighting, seats, etc.)
- Stored B1014 trouble code and possibly related communication or memory fault codes
- Module may not respond to diagnostic requests or may show invalid software/part numbers
What to check
- Record all stored DTCs and freeze frame data with a capable scan tool; note affected module ID and software/calibration numbers
- Verify vehicle battery state-of-charge and system voltage (should be >=12.6V; >13V during programming when possible)
- Inspect connector(s) and wiring to the affected module for corrosion, bent pins, water intrusion, or damage
- Check module power and ground circuits for proper voltage and low resistance to chassis ground
- Use scan tool to read module identification information: part number, software/calibration ID, build date, and checksum/version fields if available
- Check network communication (CAN) for errors — use oscilloscope or a scan tool to verify messages and bus integrity
Signal parameters
- Module software/part number (SW/PN) and calibration ID
- Stored checksum or ROM integrity flag (if available on scan tool)
- Battery/ignition voltage at the module (V)
- CAN bus status/errors (bus error counters, message frequency)
- Module response to diagnostic queries (timed responses, negative ACKs)
- Last programming date/time and technician tool ID (when supported)
Diagnostic algorithm
- Retrieve and save all DTCs from the affected module and other network modules; note time/date and freeze-frame data. Do not clear codes yet.
- Verify battery voltage and health. Charge battery or connect a stable DC power supply so voltage remains stable (recommended >12.6V; some procedures require >13V).
- Visually inspect module connectors and wiring for corrosion, moisture, damaged pins, or loose connections. Repair any issues and re-seat connectors.
- Check module power and ground with a multimeter: verify key-on and crank voltages, and measure resistance to chassis ground. Repair poor connections.
- Scan the module for software/part numbers, checksum states, and any flash memory error counters. Compare installed calibration to factory reference if available.
- Verify CAN/communication bus integrity (use scan tool or scope). Repair any bus faults before attempting reprogramming.
- If hardware connections and bus are good, attempt to reprogram the module with factory-correct firmware using OEM factory scan tool or approved reflash process. Follow manufacturer-specific sequence and security procedures.
- If reprogramming succeeds, clear codes and perform a power cycle. Re-scan for codes and exercise affected functions to confirm normal operation.
- If reflash fails repeatedly or tool reports memory/processor faults, replace the control module per OEM procedure. Ensure any required coding or VIN programming is completed after replacement.
- After repair or replacement, perform full system scan, confirm software levels, clear codes, and road-test to ensure the issue is resolved. Document the programming session and battery condition during the work.
Likely causes
- Failed or incomplete reflash/update of the module (most likely)
- Low battery or poor charging system during a previous programming event
- Module internal memory/processor failure (next most likely if reflash repeatedly fails)
- Corroded/loose power or ground connection causing intermittent writes
- Wrong software/corrective package applied (incompatible ROM)
- Bus communication errors preventing checksum validation
Fault status
Status
Program ROM checksum mismatch detected on module — firmware/flash integrity check failed. Possible corrupted memory or failed programming event.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
Similar codes
Workshop Manuals
Repair manuals for LAND ROVER
3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop Manual199,00 UAH
Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop Manual199,00 UAH
Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop Manual199,00 UAH
Your experience will help others
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Code
B1014
MITSUBISHI
B — Body
Outside TEMP. sensor inactive
Views:
UK: 13
EN: 18
RU: 13
AI status
Completed
Completed
100%
Causes
- Corrupted or altered program/firmware in the affected module (ROM/Flash/EEPROM)
- Interrupted or failed module reprogramming (power loss during update)
- Low or unstable battery/vehicle voltage during programming or normal operation
- Internal memory or processor fault in the control module
- Poor or corroded power, ground, or data connections to the module
- Faulty communication on the vehicle network (CAN bus) preventing proper checksum verification
Symptoms
- Relevant module may report itself inoperative or show incorrect behavior
- Warning messages on dash related to affected system (body network, infotainment, HVAC, etc.)
- Loss of specific features controlled by the module (doors, lighting, seats, etc.)
- Stored B1014 trouble code and possibly related communication or memory fault codes
- Module may not respond to diagnostic requests or may show invalid software/part numbers
What to check
- Record all stored DTCs and freeze frame data with a capable scan tool; note affected module ID and software/calibration numbers
- Verify vehicle battery state-of-charge and system voltage (should be >=12.6V; >13V during programming when possible)
- Inspect connector(s) and wiring to the affected module for corrosion, bent pins, water intrusion, or damage
- Check module power and ground circuits for proper voltage and low resistance to chassis ground
- Use scan tool to read module identification information: part number, software/calibration ID, build date, and checksum/version fields if available
- Check network communication (CAN) for errors — use oscilloscope or a scan tool to verify messages and bus integrity
Signal parameters
- Module software/part number (SW/PN) and calibration ID
- Stored checksum or ROM integrity flag (if available on scan tool)
- Battery/ignition voltage at the module (V)
- CAN bus status/errors (bus error counters, message frequency)
- Module response to diagnostic queries (timed responses, negative ACKs)
- Last programming date/time and technician tool ID (when supported)
Diagnostic algorithm
- Retrieve and save all DTCs from the affected module and other network modules; note time/date and freeze-frame data. Do not clear codes yet.
- Verify battery voltage and health. Charge battery or connect a stable DC power supply so voltage remains stable (recommended >12.6V; some procedures require >13V).
- Visually inspect module connectors and wiring for corrosion, moisture, damaged pins, or loose connections. Repair any issues and re-seat connectors.
- Check module power and ground with a multimeter: verify key-on and crank voltages, and measure resistance to chassis ground. Repair poor connections.
- Scan the module for software/part numbers, checksum states, and any flash memory error counters. Compare installed calibration to factory reference if available.
- Verify CAN/communication bus integrity (use scan tool or scope). Repair any bus faults before attempting reprogramming.
- If hardware connections and bus are good, attempt to reprogram the module with factory-correct firmware using OEM factory scan tool or approved reflash process. Follow manufacturer-specific sequence and security procedures.
- If reprogramming succeeds, clear codes and perform a power cycle. Re-scan for codes and exercise affected functions to confirm normal operation.
- If reflash fails repeatedly or tool reports memory/processor faults, replace the control module per OEM procedure. Ensure any required coding or VIN programming is completed after replacement.
- After repair or replacement, perform full system scan, confirm software levels, clear codes, and road-test to ensure the issue is resolved. Document the programming session and battery condition during the work.
Likely causes
- Failed or incomplete reflash/update of the module (most likely)
- Low battery or poor charging system during a previous programming event
- Module internal memory/processor failure (next most likely if reflash repeatedly fails)
- Corroded/loose power or ground connection causing intermittent writes
- Wrong software/corrective package applied (incompatible ROM)
- Bus communication errors preventing checksum validation
Fault status
Status
Program ROM checksum mismatch detected on module — firmware/flash integrity check failed. Possible corrupted memory or failed programming event.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
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