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Home / DTC / B2884 — R.center latch motor:open line

B2884 — R.center latch motor:open line

Detailed page for trouble code B2884.

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Code

B2884

MITSUBISHI B — Body

R.center latch motor:open line

Brand: MITSUBISHI
Type: B — Body
Views: UK: 21 EN: 27 RU: 23
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Page language: EN

Causes

  • Broken or disconnected wiring in the open (unlock) feed to the R center latch motor
  • Corroded or loose connector at the latch or BCM
  • Failed latch motor (open coil) or internal motor wiring open
  • Poor or open ground for the latch motor
  • Blown fuse or relay in the central locking circuit
  • Faulty BCM or connector pin damage

Symptoms

  • Right center door may not unlock or open with key/remote or central lock switch
  • No sound (no motor operation) from the latch when actuated
  • Intermittent or no response from that door’s lock/unlock
  • DTC present and possibly stored history in BCM
  • Other doors operate normally (isolating the fault to the affected latch)

What to check

  • Visual inspection of wiring harness and connectors at the right center door latch and at the BCM for damage, corrosion, or disconnection
  • Check relevant fuses and relays for the central locking/door latch circuit
  • Attempt to actuate the latch while listening for motor operation; note presence or absence of sound
  • Use a scan tool to command the latch open/unlock while monitoring live data and status
  • Measure voltage at the latch motor connector during a commanded open; check for command voltage (approx. battery voltage or switched polarity)
  • Measure continuity and resistance between latch motor terminals and BCM drive pins with connectors disconnected

Signal parameters

  • Command voltage to latch motor: approximately 0 V (ground) or battery voltage (~12 V) depending on drive polarity when commanded
  • Idle/standby voltage at motor connector: no significant voltage (open circuit expected until commanded)
  • Typical motor coil resistance: low ohms (often in the single digits to a few tens of ohms); an open reading indicates an open motor winding
  • Continuity: near-zero to low resistance between motor terminals; infinite resistance indicates open circuit
  • BCM output: switched voltage or ground signal when commanding; should appear/disappear in sync with command

Diagnostic algorithm

  1. Retrieve and record freeze frame/live data and then clear the code. Reproduce to confirm repeatability.
  2. Visually inspect the right center door latch area, connector, and wiring for obvious damage, corrosion, or water intrusion.
  3. With the connector disconnected, measure motor coil resistance. If infinite/open, suspect motor failure.
  4. Reconnect and, using a scan tool, command the latch to open while probing the motor connector. Verify a command voltage or switching ground appears at the connector.
  5. If there is no command signal at the connector but the BCM commands the action (scan tool shows request), inspect continuity from the BCM drive pin to the latch connector and check BCM connector pins.
  6. If command voltage is present at the connector but the motor does not run, check ground continuity and consider replacing the latch motor/assembly.
  7. Repair any damaged wiring or connector issues, replace the latch or motor if failed, then clear codes and retest operation several cycles.
  8. If harness and latch are good but no BCM drive output is present, inspect BCM fuses/grounds and consider diagnosing or replacing the BCM per manufacturer procedures.

Likely causes

  • Open or damaged wiring/connectors to the right center latch motor
  • Failed latch motor winding (open coil)
  • Corroded connector at the latch causing open circuit

Fault status

⚠️ Status
Open circuit detected on R center latch motor 'open' drive line (no command voltage/continuity).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

B2880 B2881 B2882 B2883 B2885 B2886
406

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