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Home / DTC / B1554 — Release of luggage compartment lid - short circuit to ground

B1554 — Release of luggage compartment lid - short circuit to ground

Detailed page for trouble code B1554.

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22,461specific
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Code

B1554

LAND ROVER B — Body

Release of luggage compartment lid - short circuit to ground

Brand: LAND ROVER
Type: B — Body
Views: UK: 10 EN: 27 RU: 21
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Damaged or chafed wiring harness contacting chassis ground
  • Water ingress/corrosion at connector or actuator
  • Failed release actuator/solenoid internally shorted
  • Corroded or pushed-back connector pins creating a ground path
  • Blown or shorted fuse or protective device
  • Faulty body control module or release module (less common)

Symptoms

  • Luggage compartment lid/trunk does not release with remote or interior switch
  • Intermittent or no operation of the release mechanism
  • Fuse related to release circuit is repeatedly blown
  • Diagnostic trouble code B1554 stored; possible related warning messages on dash
  • Unusual electrical behavior in trunk area (e.g., burnt smell, visible arcing)

What to check

  • Read and record freeze-frame and related codes with a diagnostic scanner; note any other body/network codes
  • Visually inspect wiring and connectors at the trunk latch, actuator, and along harness routing for damage, corrosion, or pin push-out
  • Check fuse(s) for the release circuit and inspect for signs of overheating
  • Disconnect actuator/connector and check if the DTC clears or behavior changes
  • Measure voltage at the release control wire with respect to chassis ground while commanding the release
  • Perform continuity/ohms check from the release control wire to chassis ground with circuit de-energized

Signal parameters

  • Rest (no-command) voltage on release control wire: near 0 V (pulled low) or floating depending on circuit design — consult vehicle wiring diagram
  • Activation command voltage: battery voltage (~11–14 V) applied to actuator when commanded
  • Expected actuator coil resistance: typically a few ohms to a few tens of ohms (varies by design) — compare to specification
  • Short-to-ground indication: very low resistance from control wire to chassis (near 0 Ω) when connector disconnected
  • Activation current: can be several hundred milliamps to multiple amps; unusually high or infinite current suggests short or open respectively

Diagnostic algorithm

  1. Connect scan tool, read and save B1554 and any related codes, note freeze-frame data and attempt to reproduce the fault.
  2. Visually inspect the trunk latch area, actuator, harness routing through the hinge and grommet, and connectors for damage or corrosion.
  3. With ignition off, disconnect the luggage compartment release connector. Clear the code and see if B1554 returns when commanding release; if code clears, suspect harness/actuator.
  4. With battery negative disconnected, perform an ohms check between the release control pin and chassis ground. A very low resistance indicates a short to ground in wiring or actuator.
  5. Inspect and test the connector pins for corrosion or pins pushed back. Repair or replace connector as needed.
  6. If harness appears intact, measure actuator coil resistance. If coil is shorted (much lower than spec) or shows intermittent resistance, replace the actuator.
  7. If no short is found at the actuator, trace the harness toward the body control module. Use back-probing and a fused jumper or an isolated power source to energize segments to isolate the short location. Move harness and wiggle to check for intermittent shorts.
  8. Inspect and repair any damaged wiring using proper splices, heat-shrink or solder, and restore grommets/retain routing to prevent chafing. Replace connector or actuator if required.
  9. After repairs, reconnect, clear codes, and verify proper operation of the trunk release and that B1554 does not return. Perform a water intrusion test if relevant.
  10. Safety note: Use a fused test lead when applying power. Disconnect the battery before cutting or splicing wires to avoid short circuits and airbag/vehicle network issues.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near hinge points
  • Corroded connector at the trunk latch or actuator
  • Internal short in the release actuator coil
  • Water entry into the trunk area causing shorts

Fault status

⚠️ Status
Short to ground detected on luggage compartment lid release circuit. The BCM detected an unintended ground fault on the release output; actuator may not operate until the short is located and repaired.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

B1550 B1553 B1560 B1600
320

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LAND ROVER

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Code

B1554

MITSUBISHI B — Body

OCSS internal unit fail

Brand: MITSUBISHI
Type: B — Body
Views: UK: 13 EN: 26 RU: 25
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Damaged or chafed wiring harness contacting chassis ground
  • Water ingress/corrosion at connector or actuator
  • Failed release actuator/solenoid internally shorted
  • Corroded or pushed-back connector pins creating a ground path
  • Blown or shorted fuse or protective device
  • Faulty body control module or release module (less common)

Symptoms

  • Luggage compartment lid/trunk does not release with remote or interior switch
  • Intermittent or no operation of the release mechanism
  • Fuse related to release circuit is repeatedly blown
  • Diagnostic trouble code B1554 stored; possible related warning messages on dash
  • Unusual electrical behavior in trunk area (e.g., burnt smell, visible arcing)

What to check

  • Read and record freeze-frame and related codes with a diagnostic scanner; note any other body/network codes
  • Visually inspect wiring and connectors at the trunk latch, actuator, and along harness routing for damage, corrosion, or pin push-out
  • Check fuse(s) for the release circuit and inspect for signs of overheating
  • Disconnect actuator/connector and check if the DTC clears or behavior changes
  • Measure voltage at the release control wire with respect to chassis ground while commanding the release
  • Perform continuity/ohms check from the release control wire to chassis ground with circuit de-energized

Signal parameters

  • Rest (no-command) voltage on release control wire: near 0 V (pulled low) or floating depending on circuit design — consult vehicle wiring diagram
  • Activation command voltage: battery voltage (~11–14 V) applied to actuator when commanded
  • Expected actuator coil resistance: typically a few ohms to a few tens of ohms (varies by design) — compare to specification
  • Short-to-ground indication: very low resistance from control wire to chassis (near 0 Ω) when connector disconnected
  • Activation current: can be several hundred milliamps to multiple amps; unusually high or infinite current suggests short or open respectively

Diagnostic algorithm

  1. Connect scan tool, read and save B1554 and any related codes, note freeze-frame data and attempt to reproduce the fault.
  2. Visually inspect the trunk latch area, actuator, harness routing through the hinge and grommet, and connectors for damage or corrosion.
  3. With ignition off, disconnect the luggage compartment release connector. Clear the code and see if B1554 returns when commanding release; if code clears, suspect harness/actuator.
  4. With battery negative disconnected, perform an ohms check between the release control pin and chassis ground. A very low resistance indicates a short to ground in wiring or actuator.
  5. Inspect and test the connector pins for corrosion or pins pushed back. Repair or replace connector as needed.
  6. If harness appears intact, measure actuator coil resistance. If coil is shorted (much lower than spec) or shows intermittent resistance, replace the actuator.
  7. If no short is found at the actuator, trace the harness toward the body control module. Use back-probing and a fused jumper or an isolated power source to energize segments to isolate the short location. Move harness and wiggle to check for intermittent shorts.
  8. Inspect and repair any damaged wiring using proper splices, heat-shrink or solder, and restore grommets/retain routing to prevent chafing. Replace connector or actuator if required.
  9. After repairs, reconnect, clear codes, and verify proper operation of the trunk release and that B1554 does not return. Perform a water intrusion test if relevant.
  10. Safety note: Use a fused test lead when applying power. Disconnect the battery before cutting or splicing wires to avoid short circuits and airbag/vehicle network issues.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near hinge points
  • Corroded connector at the trunk latch or actuator
  • Internal short in the release actuator coil
  • Water entry into the trunk area causing shorts

Fault status

⚠️ Status
Short to ground detected on luggage compartment lid release circuit. The BCM detected an unintended ground fault on the release output; actuator may not operate until the short is located and repaired.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

B1550 B1553 B1560 B1600
406

Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MITSUBISHI

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+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
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Code

B1554

Other B — Body

Decklid Release Circuit Short To Ground

Brand: Other
Type: B — Body
Views: UK: 22 EN: 34 RU: 35
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Damaged or chafed wiring harness contacting chassis ground
  • Water ingress/corrosion at connector or actuator
  • Failed release actuator/solenoid internally shorted
  • Corroded or pushed-back connector pins creating a ground path
  • Blown or shorted fuse or protective device
  • Faulty body control module or release module (less common)

Symptoms

  • Luggage compartment lid/trunk does not release with remote or interior switch
  • Intermittent or no operation of the release mechanism
  • Fuse related to release circuit is repeatedly blown
  • Diagnostic trouble code B1554 stored; possible related warning messages on dash
  • Unusual electrical behavior in trunk area (e.g., burnt smell, visible arcing)

What to check

  • Read and record freeze-frame and related codes with a diagnostic scanner; note any other body/network codes
  • Visually inspect wiring and connectors at the trunk latch, actuator, and along harness routing for damage, corrosion, or pin push-out
  • Check fuse(s) for the release circuit and inspect for signs of overheating
  • Disconnect actuator/connector and check if the DTC clears or behavior changes
  • Measure voltage at the release control wire with respect to chassis ground while commanding the release
  • Perform continuity/ohms check from the release control wire to chassis ground with circuit de-energized

Signal parameters

  • Rest (no-command) voltage on release control wire: near 0 V (pulled low) or floating depending on circuit design — consult vehicle wiring diagram
  • Activation command voltage: battery voltage (~11–14 V) applied to actuator when commanded
  • Expected actuator coil resistance: typically a few ohms to a few tens of ohms (varies by design) — compare to specification
  • Short-to-ground indication: very low resistance from control wire to chassis (near 0 Ω) when connector disconnected
  • Activation current: can be several hundred milliamps to multiple amps; unusually high or infinite current suggests short or open respectively

Diagnostic algorithm

  1. Connect scan tool, read and save B1554 and any related codes, note freeze-frame data and attempt to reproduce the fault.
  2. Visually inspect the trunk latch area, actuator, harness routing through the hinge and grommet, and connectors for damage or corrosion.
  3. With ignition off, disconnect the luggage compartment release connector. Clear the code and see if B1554 returns when commanding release; if code clears, suspect harness/actuator.
  4. With battery negative disconnected, perform an ohms check between the release control pin and chassis ground. A very low resistance indicates a short to ground in wiring or actuator.
  5. Inspect and test the connector pins for corrosion or pins pushed back. Repair or replace connector as needed.
  6. If harness appears intact, measure actuator coil resistance. If coil is shorted (much lower than spec) or shows intermittent resistance, replace the actuator.
  7. If no short is found at the actuator, trace the harness toward the body control module. Use back-probing and a fused jumper or an isolated power source to energize segments to isolate the short location. Move harness and wiggle to check for intermittent shorts.
  8. Inspect and repair any damaged wiring using proper splices, heat-shrink or solder, and restore grommets/retain routing to prevent chafing. Replace connector or actuator if required.
  9. After repairs, reconnect, clear codes, and verify proper operation of the trunk release and that B1554 does not return. Perform a water intrusion test if relevant.
  10. Safety note: Use a fused test lead when applying power. Disconnect the battery before cutting or splicing wires to avoid short circuits and airbag/vehicle network issues.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near hinge points
  • Corroded connector at the trunk latch or actuator
  • Internal short in the release actuator coil
  • Water entry into the trunk area causing shorts

Fault status

⚠️ Status
Short to ground detected on luggage compartment lid release circuit. The BCM detected an unintended ground fault on the release output; actuator may not operate until the short is located and repaired.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

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