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Home / DTC / B1506 — Right turn indicator warning lamp short to ground

B1506 — Right turn indicator warning lamp short to ground

Detailed page for trouble code B1506.

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22,491specific
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Code

B1506

ALFA ROMEO B — Body

Right turn indicator warning lamp short to ground

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

Causes

  • Damaged or chafed wiring shorted to chassis ground
  • Corroded or damaged connector at the right turn indicator or instrument cluster
  • Faulty right turn indicator bulb or LED assembly with internal short
  • Shorted instrument cluster or body control module (BCM) driver output
  • Aftermarket equipment or recent repair damaged wiring or pinched a harness

Symptoms

  • Right turn indicator warning lamp (dash) not illuminating or stays off
  • Fuse for the indicator circuit may be blown or repeatedly blows
  • Turn signal may not work on the right side, or hyperflash on dash
  • Instrument cluster warning lamp behaves abnormally (dim, steady, or no flash)
  • Possible other body electrical anomalies if BCM output is affected

What to check

  • Scan vehicle for current/recorded codes and freeze frame data
  • Inspect fuses and fusible links related to turn signal/BCM circuits
  • Visual inspection of right-side turn lamp, connectors, and wiring harness
  • Check connector terminals for corrosion, bent pins, or water intrusion
  • Measure voltage at the indicator feed with turn signal ON and OFF
  • Measure resistance between the indicator feed wire and chassis ground with power OFF

Signal parameters

  • With right turn ON: expected pulsed voltage ≈ 9–14 V at ~1–2 Hz (depends on bulb/LED type)
  • Short-to-ground condition: voltage near 0–2 V (no pulsing) when circuit should be active
  • With power OFF: normal open-circuit resistance between feed wire and ground should be very high (>10 kΩ); a short typically measures
  • Typical indicator lamp current draw: incandescent ≈0.2–2 A per lamp; LEDs much lower (check spec for the vehicle)

Diagnostic algorithm

  1. Read and record stored codes and freeze data. Clear code and see if it returns to confirm reproducibility.
  2. Perform a visual inspection: check right turn lamp assembly, bulb/LED, wiring, and connectors for damage, corrosion, or moisture.
  3. Inspect fuses related to the turn indicators/BCM. Replace blown fuses only after finding the short source.
  4. With ignition ON and right turn activated, back-probe the right indicator feed at the lamp connector and at the cluster/BCM connector. Observe voltage: expected pulsed supply; continuous ~0 V indicates a short to ground.
  5. With battery disconnected or ignition OFF, disconnect the lamp connector and measure resistance between the feed circuit and chassis ground. A low resistance (
  6. Isolate the fault by disconnecting sections of the circuit (lamp, intermediate connectors, BCM/cluster connector) and re-measuring until the short disappears to find the shorted segment.
  7. Inspect and wiggle harnesses while monitoring voltage/resistance to reproduce intermittent shorts. Repair rubbed-through insulation, replace damaged connectors, or repair broken wires with proper splices/protective sleeving.
  8. If wiring and lamp assembly check good but fault remains at the cluster/BCM output, inspect the cluster/BCM connector and pins. If module output is confirmed shorted, consult manufacturer procedures for module repair or replacement and reprogramming requirements.
  9. After repairs, reconnect everything, replace any blown fuses, clear codes, and verify proper operation by cycling the turn signals and re-scanning for codes.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near suspension components
  • Moisture/corrosion in multi-pin connector at the lamp or dash cluster
  • Failed LED module in modern lamps creating a direct path to ground
  • Connector pins pushed out, bent, or contacting ground
  • History of recent body repair or aftermarket installation affecting that circuit

Fault status

⚠️ Status
Right turn indicator warning lamp circuit short to ground detected (B1506).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1–3 hours

Similar codes

B1505 B1507 B1508 B1510 B1606
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Code

B1506

FIAT B — Body

Right turn indicator warning lamp short to ground

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

Causes

  • Damaged or chafed wiring shorted to chassis ground
  • Corroded or damaged connector at the right turn indicator or instrument cluster
  • Faulty right turn indicator bulb or LED assembly with internal short
  • Shorted instrument cluster or body control module (BCM) driver output
  • Aftermarket equipment or recent repair damaged wiring or pinched a harness

Symptoms

  • Right turn indicator warning lamp (dash) not illuminating or stays off
  • Fuse for the indicator circuit may be blown or repeatedly blows
  • Turn signal may not work on the right side, or hyperflash on dash
  • Instrument cluster warning lamp behaves abnormally (dim, steady, or no flash)
  • Possible other body electrical anomalies if BCM output is affected

What to check

  • Scan vehicle for current/recorded codes and freeze frame data
  • Inspect fuses and fusible links related to turn signal/BCM circuits
  • Visual inspection of right-side turn lamp, connectors, and wiring harness
  • Check connector terminals for corrosion, bent pins, or water intrusion
  • Measure voltage at the indicator feed with turn signal ON and OFF
  • Measure resistance between the indicator feed wire and chassis ground with power OFF

Signal parameters

  • With right turn ON: expected pulsed voltage ≈ 9–14 V at ~1–2 Hz (depends on bulb/LED type)
  • Short-to-ground condition: voltage near 0–2 V (no pulsing) when circuit should be active
  • With power OFF: normal open-circuit resistance between feed wire and ground should be very high (>10 kΩ); a short typically measures
  • Typical indicator lamp current draw: incandescent ≈0.2–2 A per lamp; LEDs much lower (check spec for the vehicle)

Diagnostic algorithm

  1. Read and record stored codes and freeze data. Clear code and see if it returns to confirm reproducibility.
  2. Perform a visual inspection: check right turn lamp assembly, bulb/LED, wiring, and connectors for damage, corrosion, or moisture.
  3. Inspect fuses related to the turn indicators/BCM. Replace blown fuses only after finding the short source.
  4. With ignition ON and right turn activated, back-probe the right indicator feed at the lamp connector and at the cluster/BCM connector. Observe voltage: expected pulsed supply; continuous ~0 V indicates a short to ground.
  5. With battery disconnected or ignition OFF, disconnect the lamp connector and measure resistance between the feed circuit and chassis ground. A low resistance (
  6. Isolate the fault by disconnecting sections of the circuit (lamp, intermediate connectors, BCM/cluster connector) and re-measuring until the short disappears to find the shorted segment.
  7. Inspect and wiggle harnesses while monitoring voltage/resistance to reproduce intermittent shorts. Repair rubbed-through insulation, replace damaged connectors, or repair broken wires with proper splices/protective sleeving.
  8. If wiring and lamp assembly check good but fault remains at the cluster/BCM output, inspect the cluster/BCM connector and pins. If module output is confirmed shorted, consult manufacturer procedures for module repair or replacement and reprogramming requirements.
  9. After repairs, reconnect everything, replace any blown fuses, clear codes, and verify proper operation by cycling the turn signals and re-scanning for codes.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near suspension components
  • Moisture/corrosion in multi-pin connector at the lamp or dash cluster
  • Failed LED module in modern lamps creating a direct path to ground
  • Connector pins pushed out, bent, or contacting ground
  • History of recent body repair or aftermarket installation affecting that circuit

Fault status

⚠️ Status
Right turn indicator warning lamp circuit short to ground detected (B1506).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1–3 hours

Similar codes

B1505 B1507 B1508 B1510 B1606
Repair manuals

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Code

B1506

LAND ROVER B — Body

Right turn direction change indicator - short circuit to ground

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

Causes

  • Damaged or chafed wiring shorted to chassis ground
  • Corroded or damaged connector at the right turn indicator or instrument cluster
  • Faulty right turn indicator bulb or LED assembly with internal short
  • Shorted instrument cluster or body control module (BCM) driver output
  • Aftermarket equipment or recent repair damaged wiring or pinched a harness

Symptoms

  • Right turn indicator warning lamp (dash) not illuminating or stays off
  • Fuse for the indicator circuit may be blown or repeatedly blows
  • Turn signal may not work on the right side, or hyperflash on dash
  • Instrument cluster warning lamp behaves abnormally (dim, steady, or no flash)
  • Possible other body electrical anomalies if BCM output is affected

What to check

  • Scan vehicle for current/recorded codes and freeze frame data
  • Inspect fuses and fusible links related to turn signal/BCM circuits
  • Visual inspection of right-side turn lamp, connectors, and wiring harness
  • Check connector terminals for corrosion, bent pins, or water intrusion
  • Measure voltage at the indicator feed with turn signal ON and OFF
  • Measure resistance between the indicator feed wire and chassis ground with power OFF

Signal parameters

  • With right turn ON: expected pulsed voltage ≈ 9–14 V at ~1–2 Hz (depends on bulb/LED type)
  • Short-to-ground condition: voltage near 0–2 V (no pulsing) when circuit should be active
  • With power OFF: normal open-circuit resistance between feed wire and ground should be very high (>10 kΩ); a short typically measures
  • Typical indicator lamp current draw: incandescent ≈0.2–2 A per lamp; LEDs much lower (check spec for the vehicle)

Diagnostic algorithm

  1. Read and record stored codes and freeze data. Clear code and see if it returns to confirm reproducibility.
  2. Perform a visual inspection: check right turn lamp assembly, bulb/LED, wiring, and connectors for damage, corrosion, or moisture.
  3. Inspect fuses related to the turn indicators/BCM. Replace blown fuses only after finding the short source.
  4. With ignition ON and right turn activated, back-probe the right indicator feed at the lamp connector and at the cluster/BCM connector. Observe voltage: expected pulsed supply; continuous ~0 V indicates a short to ground.
  5. With battery disconnected or ignition OFF, disconnect the lamp connector and measure resistance between the feed circuit and chassis ground. A low resistance (
  6. Isolate the fault by disconnecting sections of the circuit (lamp, intermediate connectors, BCM/cluster connector) and re-measuring until the short disappears to find the shorted segment.
  7. Inspect and wiggle harnesses while monitoring voltage/resistance to reproduce intermittent shorts. Repair rubbed-through insulation, replace damaged connectors, or repair broken wires with proper splices/protective sleeving.
  8. If wiring and lamp assembly check good but fault remains at the cluster/BCM output, inspect the cluster/BCM connector and pins. If module output is confirmed shorted, consult manufacturer procedures for module repair or replacement and reprogramming requirements.
  9. After repairs, reconnect everything, replace any blown fuses, clear codes, and verify proper operation by cycling the turn signals and re-scanning for codes.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near suspension components
  • Moisture/corrosion in multi-pin connector at the lamp or dash cluster
  • Failed LED module in modern lamps creating a direct path to ground
  • Connector pins pushed out, bent, or contacting ground
  • History of recent body repair or aftermarket installation affecting that circuit

Fault status

⚠️ Status
Right turn indicator warning lamp circuit short to ground detected (B1506).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1–3 hours

Similar codes

B1505 B1507 B1508 B1510 B1606
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

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

B1506

MITSUBISHI B — Body

DR.seat position SW open

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

Causes

  • Damaged or chafed wiring shorted to chassis ground
  • Corroded or damaged connector at the right turn indicator or instrument cluster
  • Faulty right turn indicator bulb or LED assembly with internal short
  • Shorted instrument cluster or body control module (BCM) driver output
  • Aftermarket equipment or recent repair damaged wiring or pinched a harness

Symptoms

  • Right turn indicator warning lamp (dash) not illuminating or stays off
  • Fuse for the indicator circuit may be blown or repeatedly blows
  • Turn signal may not work on the right side, or hyperflash on dash
  • Instrument cluster warning lamp behaves abnormally (dim, steady, or no flash)
  • Possible other body electrical anomalies if BCM output is affected

What to check

  • Scan vehicle for current/recorded codes and freeze frame data
  • Inspect fuses and fusible links related to turn signal/BCM circuits
  • Visual inspection of right-side turn lamp, connectors, and wiring harness
  • Check connector terminals for corrosion, bent pins, or water intrusion
  • Measure voltage at the indicator feed with turn signal ON and OFF
  • Measure resistance between the indicator feed wire and chassis ground with power OFF

Signal parameters

  • With right turn ON: expected pulsed voltage ≈ 9–14 V at ~1–2 Hz (depends on bulb/LED type)
  • Short-to-ground condition: voltage near 0–2 V (no pulsing) when circuit should be active
  • With power OFF: normal open-circuit resistance between feed wire and ground should be very high (>10 kΩ); a short typically measures
  • Typical indicator lamp current draw: incandescent ≈0.2–2 A per lamp; LEDs much lower (check spec for the vehicle)

Diagnostic algorithm

  1. Read and record stored codes and freeze data. Clear code and see if it returns to confirm reproducibility.
  2. Perform a visual inspection: check right turn lamp assembly, bulb/LED, wiring, and connectors for damage, corrosion, or moisture.
  3. Inspect fuses related to the turn indicators/BCM. Replace blown fuses only after finding the short source.
  4. With ignition ON and right turn activated, back-probe the right indicator feed at the lamp connector and at the cluster/BCM connector. Observe voltage: expected pulsed supply; continuous ~0 V indicates a short to ground.
  5. With battery disconnected or ignition OFF, disconnect the lamp connector and measure resistance between the feed circuit and chassis ground. A low resistance (
  6. Isolate the fault by disconnecting sections of the circuit (lamp, intermediate connectors, BCM/cluster connector) and re-measuring until the short disappears to find the shorted segment.
  7. Inspect and wiggle harnesses while monitoring voltage/resistance to reproduce intermittent shorts. Repair rubbed-through insulation, replace damaged connectors, or repair broken wires with proper splices/protective sleeving.
  8. If wiring and lamp assembly check good but fault remains at the cluster/BCM output, inspect the cluster/BCM connector and pins. If module output is confirmed shorted, consult manufacturer procedures for module repair or replacement and reprogramming requirements.
  9. After repairs, reconnect everything, replace any blown fuses, clear codes, and verify proper operation by cycling the turn signals and re-scanning for codes.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near suspension components
  • Moisture/corrosion in multi-pin connector at the lamp or dash cluster
  • Failed LED module in modern lamps creating a direct path to ground
  • Connector pins pushed out, bent, or contacting ground
  • History of recent body repair or aftermarket installation affecting that circuit

Fault status

⚠️ Status
Right turn indicator warning lamp circuit short to ground detected (B1506).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1–3 hours

Similar codes

B1505 B1507 B1508 B1510 B1606
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.
Send to email
Code

B1506

Other B — Body

Lamp Turn Signal Right Circuit Short To Ground

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

Causes

  • Damaged or chafed wiring shorted to chassis ground
  • Corroded or damaged connector at the right turn indicator or instrument cluster
  • Faulty right turn indicator bulb or LED assembly with internal short
  • Shorted instrument cluster or body control module (BCM) driver output
  • Aftermarket equipment or recent repair damaged wiring or pinched a harness

Symptoms

  • Right turn indicator warning lamp (dash) not illuminating or stays off
  • Fuse for the indicator circuit may be blown or repeatedly blows
  • Turn signal may not work on the right side, or hyperflash on dash
  • Instrument cluster warning lamp behaves abnormally (dim, steady, or no flash)
  • Possible other body electrical anomalies if BCM output is affected

What to check

  • Scan vehicle for current/recorded codes and freeze frame data
  • Inspect fuses and fusible links related to turn signal/BCM circuits
  • Visual inspection of right-side turn lamp, connectors, and wiring harness
  • Check connector terminals for corrosion, bent pins, or water intrusion
  • Measure voltage at the indicator feed with turn signal ON and OFF
  • Measure resistance between the indicator feed wire and chassis ground with power OFF

Signal parameters

  • With right turn ON: expected pulsed voltage ≈ 9–14 V at ~1–2 Hz (depends on bulb/LED type)
  • Short-to-ground condition: voltage near 0–2 V (no pulsing) when circuit should be active
  • With power OFF: normal open-circuit resistance between feed wire and ground should be very high (>10 kΩ); a short typically measures
  • Typical indicator lamp current draw: incandescent ≈0.2–2 A per lamp; LEDs much lower (check spec for the vehicle)

Diagnostic algorithm

  1. Read and record stored codes and freeze data. Clear code and see if it returns to confirm reproducibility.
  2. Perform a visual inspection: check right turn lamp assembly, bulb/LED, wiring, and connectors for damage, corrosion, or moisture.
  3. Inspect fuses related to the turn indicators/BCM. Replace blown fuses only after finding the short source.
  4. With ignition ON and right turn activated, back-probe the right indicator feed at the lamp connector and at the cluster/BCM connector. Observe voltage: expected pulsed supply; continuous ~0 V indicates a short to ground.
  5. With battery disconnected or ignition OFF, disconnect the lamp connector and measure resistance between the feed circuit and chassis ground. A low resistance (
  6. Isolate the fault by disconnecting sections of the circuit (lamp, intermediate connectors, BCM/cluster connector) and re-measuring until the short disappears to find the shorted segment.
  7. Inspect and wiggle harnesses while monitoring voltage/resistance to reproduce intermittent shorts. Repair rubbed-through insulation, replace damaged connectors, or repair broken wires with proper splices/protective sleeving.
  8. If wiring and lamp assembly check good but fault remains at the cluster/BCM output, inspect the cluster/BCM connector and pins. If module output is confirmed shorted, consult manufacturer procedures for module repair or replacement and reprogramming requirements.
  9. After repairs, reconnect everything, replace any blown fuses, clear codes, and verify proper operation by cycling the turn signals and re-scanning for codes.

Likely causes

  • Wiring harness abrasion where it passes through body panels or near suspension components
  • Moisture/corrosion in multi-pin connector at the lamp or dash cluster
  • Failed LED module in modern lamps creating a direct path to ground
  • Connector pins pushed out, bent, or contacting ground
  • History of recent body repair or aftermarket installation affecting that circuit

Fault status

⚠️ Status
Right turn indicator warning lamp circuit short to ground detected (B1506).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1–3 hours

Similar codes

B1505 B1507 B1508 B1510 B1606
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