Code
B1381
ALFA ROMEO
B — Body
Oil change reset button open circuit
Views:
UK: 8
EN: 6
RU: 8
AI status
Completed
Completed
100%
Causes
- Open or damaged wiring in the reset switch circuit
- Disconnected, corroded or bent connector pins
- Failed oil change reset switch (mechanical/electrical failure)
- Blown fuse or poor power/ground supply to the switch circuit
- Faulty Body/Instrument control module or internal connector
- Intermittent connection due to chafing, broken wire or water ingress
Symptoms
- Service/oil change reminder lamp or message does not clear after performing maintenance
- Oil change reset button has no response when pressed
- DTC B1381 stored in the body/instrument control module
- Possible intermittent operation of other related dashboard switches
- No communication or inability to perform service reset via diagnostic tool in some cases
What to check
- Scan for stored and pending codes; record freeze frame and related codes
- Visually inspect wiring and connectors at the reset switch and instrument/body module
- Check relevant fuses and power/ground circuits for the module
- Operate the reset button while monitoring signals with a DVOM or oscilloscope
- Back-probe the switch connector to confirm voltage/continuity when pressed
- Wiggle test wiring harness while watching live data or DTC status for changes
Signal parameters
- Expected: switch closes to ground or to supply (vehicle dependent) when pressed
- Typical voltages: 0 V when closed to ground, ~12 V or pulled-up voltage when open (verify with wiring diagram)
- Continuity: near 0 Ω when button pressed, open/infinite when released (measure across switch terminals)
- No-change or open reading indicates open-circuit condition or failed switch
- Signal may be polled by body/instrument module and appear in live data as binary state (0/1)
Diagnostic algorithm
- Connect a diagnostic scanner and confirm B1381 plus any related codes. Record live data for the oil change reset input if available.
- Attempt a known-good reset procedure with the scanner and note whether the tool reports inability to reset due to switch open.
- Visually inspect the reset switch, its mounting and connector. Look for corrosion, bent pins, broken wires or water damage.
- Check fuse(s) and power/ground feeding the switch/module. Repair any faulty fuses or poor grounds.
- With ignition ON, back-probe the switch connector. Verify correct pull-up/pull-down voltage with the button released and continuity to ground or supply when pressed.
- If open circuit is present at the switch connector, trace wiring toward the module, checking continuity to the module connector. Repair any breaks, chafing or connector issues.
- If the switch and wiring test OK, check the module input pin for correct reference voltage and continuity. Inspect the module connector for corrosion or bent pins.
- If module input is faulty but wiring and switch are good, consider module repair/replacement following manufacturer procedure.
- After repairs, clear codes and perform the oil/service reset operation to verify proper function. Re-scan to confirm B1381 does not return.
Likely causes
- Broken or disconnected wiring at the oil change reset switch
- Failed reset switch (stuck or no continuity when pressed)
- Corroded connector at the switch or at the body/instrument module
- Poor ground at the module or switch
- Intermittent open due to wiring harness damage near moving parts
Fault status
Status
Open circuit detected on oil change/service reset switch input. The control module cannot detect button closure; service interval reset unavailable until circuit is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-1.5 hours
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Code
B1381
FIAT
B — Body
Oil change reset button open circuit
Views:
UK: 8
EN: 5
RU: 6
AI status
Completed
Completed
100%
Causes
- Open or damaged wiring in the reset switch circuit
- Disconnected, corroded or bent connector pins
- Failed oil change reset switch (mechanical/electrical failure)
- Blown fuse or poor power/ground supply to the switch circuit
- Faulty Body/Instrument control module or internal connector
- Intermittent connection due to chafing, broken wire or water ingress
Symptoms
- Service/oil change reminder lamp or message does not clear after performing maintenance
- Oil change reset button has no response when pressed
- DTC B1381 stored in the body/instrument control module
- Possible intermittent operation of other related dashboard switches
- No communication or inability to perform service reset via diagnostic tool in some cases
What to check
- Scan for stored and pending codes; record freeze frame and related codes
- Visually inspect wiring and connectors at the reset switch and instrument/body module
- Check relevant fuses and power/ground circuits for the module
- Operate the reset button while monitoring signals with a DVOM or oscilloscope
- Back-probe the switch connector to confirm voltage/continuity when pressed
- Wiggle test wiring harness while watching live data or DTC status for changes
Signal parameters
- Expected: switch closes to ground or to supply (vehicle dependent) when pressed
- Typical voltages: 0 V when closed to ground, ~12 V or pulled-up voltage when open (verify with wiring diagram)
- Continuity: near 0 Ω when button pressed, open/infinite when released (measure across switch terminals)
- No-change or open reading indicates open-circuit condition or failed switch
- Signal may be polled by body/instrument module and appear in live data as binary state (0/1)
Diagnostic algorithm
- Connect a diagnostic scanner and confirm B1381 plus any related codes. Record live data for the oil change reset input if available.
- Attempt a known-good reset procedure with the scanner and note whether the tool reports inability to reset due to switch open.
- Visually inspect the reset switch, its mounting and connector. Look for corrosion, bent pins, broken wires or water damage.
- Check fuse(s) and power/ground feeding the switch/module. Repair any faulty fuses or poor grounds.
- With ignition ON, back-probe the switch connector. Verify correct pull-up/pull-down voltage with the button released and continuity to ground or supply when pressed.
- If open circuit is present at the switch connector, trace wiring toward the module, checking continuity to the module connector. Repair any breaks, chafing or connector issues.
- If the switch and wiring test OK, check the module input pin for correct reference voltage and continuity. Inspect the module connector for corrosion or bent pins.
- If module input is faulty but wiring and switch are good, consider module repair/replacement following manufacturer procedure.
- After repairs, clear codes and perform the oil/service reset operation to verify proper function. Re-scan to confirm B1381 does not return.
Likely causes
- Broken or disconnected wiring at the oil change reset switch
- Failed reset switch (stuck or no continuity when pressed)
- Corroded connector at the switch or at the body/instrument module
- Poor ground at the module or switch
- Intermittent open due to wiring harness damage near moving parts
Fault status
Status
Open circuit detected on oil change/service reset switch input. The control module cannot detect button closure; service interval reset unavailable until circuit is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-1.5 hours
Similar codes
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Code
B1381
Generic
B — Body
Oil Change Reset Button Circuit Open
Views:
UK: 18
EN: 25
RU: 17
AI status
Completed
Completed
100%
Causes
- Open or damaged wiring in the reset switch circuit
- Disconnected, corroded or bent connector pins
- Failed oil change reset switch (mechanical/electrical failure)
- Blown fuse or poor power/ground supply to the switch circuit
- Faulty Body/Instrument control module or internal connector
- Intermittent connection due to chafing, broken wire or water ingress
Symptoms
- Service/oil change reminder lamp or message does not clear after performing maintenance
- Oil change reset button has no response when pressed
- DTC B1381 stored in the body/instrument control module
- Possible intermittent operation of other related dashboard switches
- No communication or inability to perform service reset via diagnostic tool in some cases
What to check
- Scan for stored and pending codes; record freeze frame and related codes
- Visually inspect wiring and connectors at the reset switch and instrument/body module
- Check relevant fuses and power/ground circuits for the module
- Operate the reset button while monitoring signals with a DVOM or oscilloscope
- Back-probe the switch connector to confirm voltage/continuity when pressed
- Wiggle test wiring harness while watching live data or DTC status for changes
Signal parameters
- Expected: switch closes to ground or to supply (vehicle dependent) when pressed
- Typical voltages: 0 V when closed to ground, ~12 V or pulled-up voltage when open (verify with wiring diagram)
- Continuity: near 0 Ω when button pressed, open/infinite when released (measure across switch terminals)
- No-change or open reading indicates open-circuit condition or failed switch
- Signal may be polled by body/instrument module and appear in live data as binary state (0/1)
Diagnostic algorithm
- Connect a diagnostic scanner and confirm B1381 plus any related codes. Record live data for the oil change reset input if available.
- Attempt a known-good reset procedure with the scanner and note whether the tool reports inability to reset due to switch open.
- Visually inspect the reset switch, its mounting and connector. Look for corrosion, bent pins, broken wires or water damage.
- Check fuse(s) and power/ground feeding the switch/module. Repair any faulty fuses or poor grounds.
- With ignition ON, back-probe the switch connector. Verify correct pull-up/pull-down voltage with the button released and continuity to ground or supply when pressed.
- If open circuit is present at the switch connector, trace wiring toward the module, checking continuity to the module connector. Repair any breaks, chafing or connector issues.
- If the switch and wiring test OK, check the module input pin for correct reference voltage and continuity. Inspect the module connector for corrosion or bent pins.
- If module input is faulty but wiring and switch are good, consider module repair/replacement following manufacturer procedure.
- After repairs, clear codes and perform the oil/service reset operation to verify proper function. Re-scan to confirm B1381 does not return.
Likely causes
- Broken or disconnected wiring at the oil change reset switch
- Failed reset switch (stuck or no continuity when pressed)
- Corroded connector at the switch or at the body/instrument module
- Poor ground at the module or switch
- Intermittent open due to wiring harness damage near moving parts
Fault status
Status
Open circuit detected on oil change/service reset switch input. The control module cannot detect button closure; service interval reset unavailable until circuit is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-1.5 hours
Similar codes
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Code
B1381
Other
B — Body
Oil Change Reset Button Circuit Open
Views:
UK: 22
EN: 31
RU: 27
AI status
Completed
Completed
100%
Causes
- Open or damaged wiring in the reset switch circuit
- Disconnected, corroded or bent connector pins
- Failed oil change reset switch (mechanical/electrical failure)
- Blown fuse or poor power/ground supply to the switch circuit
- Faulty Body/Instrument control module or internal connector
- Intermittent connection due to chafing, broken wire or water ingress
Symptoms
- Service/oil change reminder lamp or message does not clear after performing maintenance
- Oil change reset button has no response when pressed
- DTC B1381 stored in the body/instrument control module
- Possible intermittent operation of other related dashboard switches
- No communication or inability to perform service reset via diagnostic tool in some cases
What to check
- Scan for stored and pending codes; record freeze frame and related codes
- Visually inspect wiring and connectors at the reset switch and instrument/body module
- Check relevant fuses and power/ground circuits for the module
- Operate the reset button while monitoring signals with a DVOM or oscilloscope
- Back-probe the switch connector to confirm voltage/continuity when pressed
- Wiggle test wiring harness while watching live data or DTC status for changes
Signal parameters
- Expected: switch closes to ground or to supply (vehicle dependent) when pressed
- Typical voltages: 0 V when closed to ground, ~12 V or pulled-up voltage when open (verify with wiring diagram)
- Continuity: near 0 Ω when button pressed, open/infinite when released (measure across switch terminals)
- No-change or open reading indicates open-circuit condition or failed switch
- Signal may be polled by body/instrument module and appear in live data as binary state (0/1)
Diagnostic algorithm
- Connect a diagnostic scanner and confirm B1381 plus any related codes. Record live data for the oil change reset input if available.
- Attempt a known-good reset procedure with the scanner and note whether the tool reports inability to reset due to switch open.
- Visually inspect the reset switch, its mounting and connector. Look for corrosion, bent pins, broken wires or water damage.
- Check fuse(s) and power/ground feeding the switch/module. Repair any faulty fuses or poor grounds.
- With ignition ON, back-probe the switch connector. Verify correct pull-up/pull-down voltage with the button released and continuity to ground or supply when pressed.
- If open circuit is present at the switch connector, trace wiring toward the module, checking continuity to the module connector. Repair any breaks, chafing or connector issues.
- If the switch and wiring test OK, check the module input pin for correct reference voltage and continuity. Inspect the module connector for corrosion or bent pins.
- If module input is faulty but wiring and switch are good, consider module repair/replacement following manufacturer procedure.
- After repairs, clear codes and perform the oil/service reset operation to verify proper function. Re-scan to confirm B1381 does not return.
Likely causes
- Broken or disconnected wiring at the oil change reset switch
- Failed reset switch (stuck or no continuity when pressed)
- Corroded connector at the switch or at the body/instrument module
- Poor ground at the module or switch
- Intermittent open due to wiring harness damage near moving parts
Fault status
Status
Open circuit detected on oil change/service reset switch input. The control module cannot detect button closure; service interval reset unavailable until circuit is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-1.5 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
👎 Dislike
0
Send to email