Home / DTC / B1381 — Oil Change Reset Button Circuit Open

B1381 — Oil Change Reset Button Circuit Open

Detailed page for trouble code B1381.

34,405codes
59brands
11,914generic
22,491specific
Reset
Code

B1381

Other B — Body

Oil Change Reset Button Circuit Open

Brand: Other
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or broken wiring between reset switch and control module
  • Disconnected, corroded, or damaged reset switch connector
  • Failed/reset switch (mechanical or internal electrical failure)
  • Blown fuse or power/ground issue affecting the circuit
  • Faulty body/control module input (less common)
  • Water intrusion or corrosion in switch or connector

Symptoms

  • Oil change / service reminder cannot be reset or reset attempt has no effect
  • Service reminder message or lamp remains on after reset attempts
  • Stored B1381 trouble code and possibly related service lamp illumination
  • No change in scan tool parameter when pressing the reset button
  • Intermittent operation of the reset button

What to check

  • Use a scan tool to confirm the code and watch the reset switch input while pressing the button
  • Visually inspect switch, bezel, and wiring harness for damage, corrosion, or water intrusion
  • Verify connector is fully seated and pins are not bent, pushed out, or corroded
  • Check relevant fuses and vehicle ground points
  • Perform a wiggle test on the harness while monitoring the switch signal with a scan tool or meter

Signal parameters

  • Open circuit: control module sees high impedance; voltage may read battery or pull‑up voltage (approx. 5–12 V depending on system)
  • Closed switch: voltage typically pulled to ground (~0 V) or to low logic level
  • Expected continuity when switch pressed: near 0 Ω between switch terminals (closed)
  • High resistance (kΩ) or infinite resistance indicates open circuit

Diagnostic algorithm

  1. Read and record freeze frame data and any related codes. Clear the code and attempt to re-create the fault by pressing the oil change reset button while monitoring input with a scan tool.
  2. Visually inspect the reset button assembly, mounting, and wiring for damage, water entry, or corrosion. Check connector for bent or pushed‑out pins.
  3. With ignition on, backprobe the switch connector and measure the control wire voltage with the button released and pressed. Note expected change (open vs closed).
  4. If no change, disconnect connector and check continuity between the switch terminals while pressing the button. Replace switch if it does not close (infinite resistance when pressed).
  5. If switch checks good, perform continuity/resistance check from the module input pin to the switch connector pin. Repair any open or high resistance wiring (splice, connector, or harness repair).
  6. Check related fuses and ground points for integrity. Repair as needed.
  7. If wiring and switch are good but input remains open at the module, test or replace the module input per manufacturer procedures or consult technical service information.
  8. After repair, clear codes and verify proper operation by performing multiple reset attempts and confirming the code does not return.

Likely causes

  • Intermittent or open wire in harness to oil change reset switch
  • Pushbutton switch has failed mechanically and is not making contact
  • Connector pins pushed out, corroded, or contaminated preventing continuity
  • Fuse related to instrument/body module circuit open
  • Ground wire broken or poor ground at switch or module

Fault status

⚠️ Status
Oil Change Reset Button Circuit Open — open/ no continuity detected on oil change reset switch input to control module.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 1.5 hours

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