Code
B1380
ALFA ROMEO
B — Body
Oil change reset button circuit
Views:
UK: 3
EN: 3
RU: 15
AI status
Completed
Completed
100%
Causes
- Faulty service/oil change reset switch (mechanical or internal electrical failure)
- Open or shorted wiring between switch and body/control module
- Corroded or loose connector at the switch or module
- Blown fuse or poor power/ground to the switch circuit
- Faulty body control module (BCM) or software anomaly
Symptoms
- Service/oil change reminder will not reset using the reset button
- Service message or lamp remains on after oil service
- Reset button is unresponsive or intermittent
- Stored B1380 fault code and possibly related warnings on instrument cluster
What to check
- Read and record fault codes and freeze frame data with a dealer-level or capable scan tool; attempt to clear code and re-run test
- Visually inspect reset switch, surrounding trim, and wiring harness for damage, corrosion, or loose connectors
- Check fuses related to instrument/BCM circuits
- Back-probe the switch connector and measure voltage/continuity with a multimeter while operating the switch
- Inspect grounds for security and corrosion at the nearest body/chassis ground point
- If available, use a scope to observe switch signal while pressing the button to check for contact bounce or noise
Signal parameters
- Resting signal voltage: typically battery voltage or module pull-up level (approx. 9–14 V) or module reference (may be ~5 V) depending on vehicle design — verify against manufacturer data
- Pressed switch voltage: transition to near 0 V (ground) or to a low-voltage logic level — multimeter should show a clear change when pressed
- Switch continuity: near 0 ohms when closed, open/infinite when released
- Current draw: very low (milliamps); no short-circuit-level currents should be present
- No excessive contact bounce or intermittent open/close on scope during normal operation
Diagnostic algorithm
- Connect a capable scan tool. Confirm B1380 is present and note any related codes. Attempt to clear codes and reproduce the fault by attempting a reset.
- Visually inspect the reset switch, bezel, and wiring harness for damage, moisture ingress, or detached connectors. Repair any visible issues.
- Identify switch connector pins (reference wiring diagram if available). Back-probe connector and measure voltage with ignition on. Note resting voltage and behaviour when the button is pressed.
- Verify continuity of the switch: disconnect connector and measure resistance across switch terminals. Replace switch if contacts do not change as expected.
- Check wiring between the switch and the module for opens or shorts: perform wiggle tests while monitoring signal, and perform resistance checks to module pins. Repair wiring as required.
- Inspect and test related fuses and grounds. Clean and tighten ground connections.
- If wiring and switch test OK but signal remains out-of-spec, test the input pin at the control module for expected voltage and continuity. If the module input is faulty or the pin is damaged, further module-level diagnosis is required.
- If available, update or reflash BCM software per manufacturer service information; some resets may be software-handled.
- After repairs, clear codes and perform service reset procedure while monitoring the input signal to confirm correct operation and that B1380 does not return.
- If fault persists after exhaustive wiring and switch verification, consider module replacement only after confirming module fault per manufacturer diagnostic flow.
Likely causes
- Wiring connector corrosion at the reset button (common on interior switches exposed to moisture)
- Open circuit in the switch wiring due to chafing or disconnected connector
- Short to ground or short to battery voltage caused by damaged insulation
- Failed switch contacts (stuck open or intermittent)
Fault status
Status
Oil change reset button circuit fault detected — service reset switch signal out of range or circuit fault (B1380).
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1380
FIAT
B — Body
Oil change reset button circuit
Views:
UK: 4
EN: 5
RU: 17
AI status
Completed
Completed
100%
Causes
- Faulty service/oil change reset switch (mechanical or internal electrical failure)
- Open or shorted wiring between switch and body/control module
- Corroded or loose connector at the switch or module
- Blown fuse or poor power/ground to the switch circuit
- Faulty body control module (BCM) or software anomaly
Symptoms
- Service/oil change reminder will not reset using the reset button
- Service message or lamp remains on after oil service
- Reset button is unresponsive or intermittent
- Stored B1380 fault code and possibly related warnings on instrument cluster
What to check
- Read and record fault codes and freeze frame data with a dealer-level or capable scan tool; attempt to clear code and re-run test
- Visually inspect reset switch, surrounding trim, and wiring harness for damage, corrosion, or loose connectors
- Check fuses related to instrument/BCM circuits
- Back-probe the switch connector and measure voltage/continuity with a multimeter while operating the switch
- Inspect grounds for security and corrosion at the nearest body/chassis ground point
- If available, use a scope to observe switch signal while pressing the button to check for contact bounce or noise
Signal parameters
- Resting signal voltage: typically battery voltage or module pull-up level (approx. 9–14 V) or module reference (may be ~5 V) depending on vehicle design — verify against manufacturer data
- Pressed switch voltage: transition to near 0 V (ground) or to a low-voltage logic level — multimeter should show a clear change when pressed
- Switch continuity: near 0 ohms when closed, open/infinite when released
- Current draw: very low (milliamps); no short-circuit-level currents should be present
- No excessive contact bounce or intermittent open/close on scope during normal operation
Diagnostic algorithm
- Connect a capable scan tool. Confirm B1380 is present and note any related codes. Attempt to clear codes and reproduce the fault by attempting a reset.
- Visually inspect the reset switch, bezel, and wiring harness for damage, moisture ingress, or detached connectors. Repair any visible issues.
- Identify switch connector pins (reference wiring diagram if available). Back-probe connector and measure voltage with ignition on. Note resting voltage and behaviour when the button is pressed.
- Verify continuity of the switch: disconnect connector and measure resistance across switch terminals. Replace switch if contacts do not change as expected.
- Check wiring between the switch and the module for opens or shorts: perform wiggle tests while monitoring signal, and perform resistance checks to module pins. Repair wiring as required.
- Inspect and test related fuses and grounds. Clean and tighten ground connections.
- If wiring and switch test OK but signal remains out-of-spec, test the input pin at the control module for expected voltage and continuity. If the module input is faulty or the pin is damaged, further module-level diagnosis is required.
- If available, update or reflash BCM software per manufacturer service information; some resets may be software-handled.
- After repairs, clear codes and perform service reset procedure while monitoring the input signal to confirm correct operation and that B1380 does not return.
- If fault persists after exhaustive wiring and switch verification, consider module replacement only after confirming module fault per manufacturer diagnostic flow.
Likely causes
- Wiring connector corrosion at the reset button (common on interior switches exposed to moisture)
- Open circuit in the switch wiring due to chafing or disconnected connector
- Short to ground or short to battery voltage caused by damaged insulation
- Failed switch contacts (stuck open or intermittent)
Fault status
Status
Oil change reset button circuit fault detected — service reset switch signal out of range or circuit fault (B1380).
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1380
Generic
B — Body
Oil Change Reset Button Circuit Failure
Views:
UK: 16
EN: 30
RU: 44
AI status
Completed
Completed
100%
Causes
- Faulty service/oil change reset switch (mechanical or internal electrical failure)
- Open or shorted wiring between switch and body/control module
- Corroded or loose connector at the switch or module
- Blown fuse or poor power/ground to the switch circuit
- Faulty body control module (BCM) or software anomaly
Symptoms
- Service/oil change reminder will not reset using the reset button
- Service message or lamp remains on after oil service
- Reset button is unresponsive or intermittent
- Stored B1380 fault code and possibly related warnings on instrument cluster
What to check
- Read and record fault codes and freeze frame data with a dealer-level or capable scan tool; attempt to clear code and re-run test
- Visually inspect reset switch, surrounding trim, and wiring harness for damage, corrosion, or loose connectors
- Check fuses related to instrument/BCM circuits
- Back-probe the switch connector and measure voltage/continuity with a multimeter while operating the switch
- Inspect grounds for security and corrosion at the nearest body/chassis ground point
- If available, use a scope to observe switch signal while pressing the button to check for contact bounce or noise
Signal parameters
- Resting signal voltage: typically battery voltage or module pull-up level (approx. 9–14 V) or module reference (may be ~5 V) depending on vehicle design — verify against manufacturer data
- Pressed switch voltage: transition to near 0 V (ground) or to a low-voltage logic level — multimeter should show a clear change when pressed
- Switch continuity: near 0 ohms when closed, open/infinite when released
- Current draw: very low (milliamps); no short-circuit-level currents should be present
- No excessive contact bounce or intermittent open/close on scope during normal operation
Diagnostic algorithm
- Connect a capable scan tool. Confirm B1380 is present and note any related codes. Attempt to clear codes and reproduce the fault by attempting a reset.
- Visually inspect the reset switch, bezel, and wiring harness for damage, moisture ingress, or detached connectors. Repair any visible issues.
- Identify switch connector pins (reference wiring diagram if available). Back-probe connector and measure voltage with ignition on. Note resting voltage and behaviour when the button is pressed.
- Verify continuity of the switch: disconnect connector and measure resistance across switch terminals. Replace switch if contacts do not change as expected.
- Check wiring between the switch and the module for opens or shorts: perform wiggle tests while monitoring signal, and perform resistance checks to module pins. Repair wiring as required.
- Inspect and test related fuses and grounds. Clean and tighten ground connections.
- If wiring and switch test OK but signal remains out-of-spec, test the input pin at the control module for expected voltage and continuity. If the module input is faulty or the pin is damaged, further module-level diagnosis is required.
- If available, update or reflash BCM software per manufacturer service information; some resets may be software-handled.
- After repairs, clear codes and perform service reset procedure while monitoring the input signal to confirm correct operation and that B1380 does not return.
- If fault persists after exhaustive wiring and switch verification, consider module replacement only after confirming module fault per manufacturer diagnostic flow.
Likely causes
- Wiring connector corrosion at the reset button (common on interior switches exposed to moisture)
- Open circuit in the switch wiring due to chafing or disconnected connector
- Short to ground or short to battery voltage caused by damaged insulation
- Failed switch contacts (stuck open or intermittent)
Fault status
Status
Oil change reset button circuit fault detected — service reset switch signal out of range or circuit fault (B1380).
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Code
B1380
LAND ROVER
B — Body
Steering wheel - package of right keys
Views:
UK: 4
EN: 6
RU: 19
AI status
Completed
Completed
100%
Causes
- Faulty service/oil change reset switch (mechanical or internal electrical failure)
- Open or shorted wiring between switch and body/control module
- Corroded or loose connector at the switch or module
- Blown fuse or poor power/ground to the switch circuit
- Faulty body control module (BCM) or software anomaly
Symptoms
- Service/oil change reminder will not reset using the reset button
- Service message or lamp remains on after oil service
- Reset button is unresponsive or intermittent
- Stored B1380 fault code and possibly related warnings on instrument cluster
What to check
- Read and record fault codes and freeze frame data with a dealer-level or capable scan tool; attempt to clear code and re-run test
- Visually inspect reset switch, surrounding trim, and wiring harness for damage, corrosion, or loose connectors
- Check fuses related to instrument/BCM circuits
- Back-probe the switch connector and measure voltage/continuity with a multimeter while operating the switch
- Inspect grounds for security and corrosion at the nearest body/chassis ground point
- If available, use a scope to observe switch signal while pressing the button to check for contact bounce or noise
Signal parameters
- Resting signal voltage: typically battery voltage or module pull-up level (approx. 9–14 V) or module reference (may be ~5 V) depending on vehicle design — verify against manufacturer data
- Pressed switch voltage: transition to near 0 V (ground) or to a low-voltage logic level — multimeter should show a clear change when pressed
- Switch continuity: near 0 ohms when closed, open/infinite when released
- Current draw: very low (milliamps); no short-circuit-level currents should be present
- No excessive contact bounce or intermittent open/close on scope during normal operation
Diagnostic algorithm
- Connect a capable scan tool. Confirm B1380 is present and note any related codes. Attempt to clear codes and reproduce the fault by attempting a reset.
- Visually inspect the reset switch, bezel, and wiring harness for damage, moisture ingress, or detached connectors. Repair any visible issues.
- Identify switch connector pins (reference wiring diagram if available). Back-probe connector and measure voltage with ignition on. Note resting voltage and behaviour when the button is pressed.
- Verify continuity of the switch: disconnect connector and measure resistance across switch terminals. Replace switch if contacts do not change as expected.
- Check wiring between the switch and the module for opens or shorts: perform wiggle tests while monitoring signal, and perform resistance checks to module pins. Repair wiring as required.
- Inspect and test related fuses and grounds. Clean and tighten ground connections.
- If wiring and switch test OK but signal remains out-of-spec, test the input pin at the control module for expected voltage and continuity. If the module input is faulty or the pin is damaged, further module-level diagnosis is required.
- If available, update or reflash BCM software per manufacturer service information; some resets may be software-handled.
- After repairs, clear codes and perform service reset procedure while monitoring the input signal to confirm correct operation and that B1380 does not return.
- If fault persists after exhaustive wiring and switch verification, consider module replacement only after confirming module fault per manufacturer diagnostic flow.
Likely causes
- Wiring connector corrosion at the reset button (common on interior switches exposed to moisture)
- Open circuit in the switch wiring due to chafing or disconnected connector
- Short to ground or short to battery voltage caused by damaged insulation
- Failed switch contacts (stuck open or intermittent)
Fault status
Status
Oil change reset button circuit fault detected — service reset switch signal out of range or circuit fault (B1380).
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
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0
Send to email
Code
B1380
Other
B — Body
Oil Change Reset Button Circuit Failure
Views:
UK: 16
EN: 33
RU: 41
AI status
Completed
Completed
100%
Causes
- Faulty service/oil change reset switch (mechanical or internal electrical failure)
- Open or shorted wiring between switch and body/control module
- Corroded or loose connector at the switch or module
- Blown fuse or poor power/ground to the switch circuit
- Faulty body control module (BCM) or software anomaly
Symptoms
- Service/oil change reminder will not reset using the reset button
- Service message or lamp remains on after oil service
- Reset button is unresponsive or intermittent
- Stored B1380 fault code and possibly related warnings on instrument cluster
What to check
- Read and record fault codes and freeze frame data with a dealer-level or capable scan tool; attempt to clear code and re-run test
- Visually inspect reset switch, surrounding trim, and wiring harness for damage, corrosion, or loose connectors
- Check fuses related to instrument/BCM circuits
- Back-probe the switch connector and measure voltage/continuity with a multimeter while operating the switch
- Inspect grounds for security and corrosion at the nearest body/chassis ground point
- If available, use a scope to observe switch signal while pressing the button to check for contact bounce or noise
Signal parameters
- Resting signal voltage: typically battery voltage or module pull-up level (approx. 9–14 V) or module reference (may be ~5 V) depending on vehicle design — verify against manufacturer data
- Pressed switch voltage: transition to near 0 V (ground) or to a low-voltage logic level — multimeter should show a clear change when pressed
- Switch continuity: near 0 ohms when closed, open/infinite when released
- Current draw: very low (milliamps); no short-circuit-level currents should be present
- No excessive contact bounce or intermittent open/close on scope during normal operation
Diagnostic algorithm
- Connect a capable scan tool. Confirm B1380 is present and note any related codes. Attempt to clear codes and reproduce the fault by attempting a reset.
- Visually inspect the reset switch, bezel, and wiring harness for damage, moisture ingress, or detached connectors. Repair any visible issues.
- Identify switch connector pins (reference wiring diagram if available). Back-probe connector and measure voltage with ignition on. Note resting voltage and behaviour when the button is pressed.
- Verify continuity of the switch: disconnect connector and measure resistance across switch terminals. Replace switch if contacts do not change as expected.
- Check wiring between the switch and the module for opens or shorts: perform wiggle tests while monitoring signal, and perform resistance checks to module pins. Repair wiring as required.
- Inspect and test related fuses and grounds. Clean and tighten ground connections.
- If wiring and switch test OK but signal remains out-of-spec, test the input pin at the control module for expected voltage and continuity. If the module input is faulty or the pin is damaged, further module-level diagnosis is required.
- If available, update or reflash BCM software per manufacturer service information; some resets may be software-handled.
- After repairs, clear codes and perform service reset procedure while monitoring the input signal to confirm correct operation and that B1380 does not return.
- If fault persists after exhaustive wiring and switch verification, consider module replacement only after confirming module fault per manufacturer diagnostic flow.
Likely causes
- Wiring connector corrosion at the reset button (common on interior switches exposed to moisture)
- Open circuit in the switch wiring due to chafing or disconnected connector
- Short to ground or short to battery voltage caused by damaged insulation
- Failed switch contacts (stuck open or intermittent)
Fault status
Status
Oil change reset button circuit fault detected — service reset switch signal out of range or circuit fault (B1380).
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
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0
Send to email