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Home / DTC / B2464 — Navigation CD Player - Decoding Error

B2464 — Navigation CD Player - Decoding Error

Detailed page for trouble code B2464.

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

B2464

HUMMER B — Body

Navigation CD Player - Decoding Error

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

Causes

  • Dirty, scratched, warped or incompatible CD/disc
  • Optical pickup (laser) or servo mechanism failure in the CD drive
  • Corrupted or unreadable data on the disc (burned disc or bad media)
  • Intermittent or low power / bad ground to the head unit
  • Damaged wiring harness or poor connector/contact to the CD mechanism
  • Software/firmware bug in navigation/head unit

Symptoms

  • Navigation head unit displays a CD decoding or read error
  • CD will not play or skips frequently
  • Audio stops or drops out when using CD-based navigation audio
  • Head unit may hang, reset, or show error messages when CD inserted
  • No sound from CD playback while other audio sources work normally

What to check

  • Verify code with a scan tool; record any additional related DTCs
  • Try multiple known-good commercial audio CDs and a known-good burned disc if applicable
  • Inspect discs for scratches, dirt, or warping; clean/retry
  • Check power and ground at the head unit (12V constant/ignition, ground) with a meter
  • Visually inspect the audio/navigation head unit and CD-mechanism connectors for corrosion, bent pins, and secure fit
  • Check for water intrusion or signs of contamination in the unit

Signal parameters

  • Battery/ignition supply voltage to head unit (expected ~11–14.5 V)
  • Ground continuity and resistance at head unit chassis ground
  • Disc present sensor status (if available)
  • CD transport/servo status / optical pickup activity (if available via dealer scan tool)
  • CAN/CAN-FD or MOST bus messages between radio/navigation and audio modules (error/no comms)
  • CD error counters or internal read/CRC error counts (from diagnostic tool)

Diagnostic algorithm

  1. Confirm the B2464 code with a scan tool and note freeze frame or related codes.
  2. Reproduce the symptom: insert the original disc and observe behavior; try several known-good commercial CDs.
  3. Inspect and clean the disc(s) and retest. If commercial discs read OK but specific disc fails, treat as bad media.
  4. Inspect connectors and wiring at the back of the head unit for corrosion, loose pins, or damage. Wiggle-test harness while observing operation.
  5. Measure supply and ground at the head unit with a multimeter. Repair any low/absent voltages or poor grounds.
  6. Use dealer-level scan tool (if available) to read CD drive/optical pickup status, read error counters, and check for software updates or known defects.
  7. If intermittent or only certain discs fail, consider cleaning or servicing the optical pickup. Some units respond to in-unit CD drive cleaning.
  8. If the unit shows internal mechanical or optical faults, replace or repair the CD/navigation head unit. Confirm repair by re-checking for stored codes and by testing with multiple discs.
  9. After repair, clear codes, perform functional test and road test if required. Verify no recurrence of B2464.

Likely causes

  • Dirty, scratched or incompatible disc
  • Failing optical pickup (laser) or drive mechanics
  • Corrupted/badly burned disc
  • Poor electrical connection (power/ground) to the head unit

Fault status

⚠️ Status
Navigation CD player reported a decoding/read error — the unit could not decode the disc data.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

B2460 B2461 B2462 B2463 B2465
Repair manuals

Manual library for HUMMER

138

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Code

B2464

LAND ROVER B — Body

Failure in the auxiliary heater departure time exceeded

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

Causes

  • Dirty, scratched, warped or incompatible CD/disc
  • Optical pickup (laser) or servo mechanism failure in the CD drive
  • Corrupted or unreadable data on the disc (burned disc or bad media)
  • Intermittent or low power / bad ground to the head unit
  • Damaged wiring harness or poor connector/contact to the CD mechanism
  • Software/firmware bug in navigation/head unit

Symptoms

  • Navigation head unit displays a CD decoding or read error
  • CD will not play or skips frequently
  • Audio stops or drops out when using CD-based navigation audio
  • Head unit may hang, reset, or show error messages when CD inserted
  • No sound from CD playback while other audio sources work normally

What to check

  • Verify code with a scan tool; record any additional related DTCs
  • Try multiple known-good commercial audio CDs and a known-good burned disc if applicable
  • Inspect discs for scratches, dirt, or warping; clean/retry
  • Check power and ground at the head unit (12V constant/ignition, ground) with a meter
  • Visually inspect the audio/navigation head unit and CD-mechanism connectors for corrosion, bent pins, and secure fit
  • Check for water intrusion or signs of contamination in the unit

Signal parameters

  • Battery/ignition supply voltage to head unit (expected ~11–14.5 V)
  • Ground continuity and resistance at head unit chassis ground
  • Disc present sensor status (if available)
  • CD transport/servo status / optical pickup activity (if available via dealer scan tool)
  • CAN/CAN-FD or MOST bus messages between radio/navigation and audio modules (error/no comms)
  • CD error counters or internal read/CRC error counts (from diagnostic tool)

Diagnostic algorithm

  1. Confirm the B2464 code with a scan tool and note freeze frame or related codes.
  2. Reproduce the symptom: insert the original disc and observe behavior; try several known-good commercial CDs.
  3. Inspect and clean the disc(s) and retest. If commercial discs read OK but specific disc fails, treat as bad media.
  4. Inspect connectors and wiring at the back of the head unit for corrosion, loose pins, or damage. Wiggle-test harness while observing operation.
  5. Measure supply and ground at the head unit with a multimeter. Repair any low/absent voltages or poor grounds.
  6. Use dealer-level scan tool (if available) to read CD drive/optical pickup status, read error counters, and check for software updates or known defects.
  7. If intermittent or only certain discs fail, consider cleaning or servicing the optical pickup. Some units respond to in-unit CD drive cleaning.
  8. If the unit shows internal mechanical or optical faults, replace or repair the CD/navigation head unit. Confirm repair by re-checking for stored codes and by testing with multiple discs.
  9. After repair, clear codes, perform functional test and road test if required. Verify no recurrence of B2464.

Likely causes

  • Dirty, scratched or incompatible disc
  • Failing optical pickup (laser) or drive mechanics
  • Corrupted/badly burned disc
  • Poor electrical connection (power/ground) to the head unit

Fault status

⚠️ Status
Navigation CD player reported a decoding/read error — the unit could not decode the disc data.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

B2460 B2461 B2462 B2463 B2465
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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Code

B2464

MITSUBISHI B — Body

Meter information SW sticking

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

Causes

  • Dirty, scratched, warped or incompatible CD/disc
  • Optical pickup (laser) or servo mechanism failure in the CD drive
  • Corrupted or unreadable data on the disc (burned disc or bad media)
  • Intermittent or low power / bad ground to the head unit
  • Damaged wiring harness or poor connector/contact to the CD mechanism
  • Software/firmware bug in navigation/head unit

Symptoms

  • Navigation head unit displays a CD decoding or read error
  • CD will not play or skips frequently
  • Audio stops or drops out when using CD-based navigation audio
  • Head unit may hang, reset, or show error messages when CD inserted
  • No sound from CD playback while other audio sources work normally

What to check

  • Verify code with a scan tool; record any additional related DTCs
  • Try multiple known-good commercial audio CDs and a known-good burned disc if applicable
  • Inspect discs for scratches, dirt, or warping; clean/retry
  • Check power and ground at the head unit (12V constant/ignition, ground) with a meter
  • Visually inspect the audio/navigation head unit and CD-mechanism connectors for corrosion, bent pins, and secure fit
  • Check for water intrusion or signs of contamination in the unit

Signal parameters

  • Battery/ignition supply voltage to head unit (expected ~11–14.5 V)
  • Ground continuity and resistance at head unit chassis ground
  • Disc present sensor status (if available)
  • CD transport/servo status / optical pickup activity (if available via dealer scan tool)
  • CAN/CAN-FD or MOST bus messages between radio/navigation and audio modules (error/no comms)
  • CD error counters or internal read/CRC error counts (from diagnostic tool)

Diagnostic algorithm

  1. Confirm the B2464 code with a scan tool and note freeze frame or related codes.
  2. Reproduce the symptom: insert the original disc and observe behavior; try several known-good commercial CDs.
  3. Inspect and clean the disc(s) and retest. If commercial discs read OK but specific disc fails, treat as bad media.
  4. Inspect connectors and wiring at the back of the head unit for corrosion, loose pins, or damage. Wiggle-test harness while observing operation.
  5. Measure supply and ground at the head unit with a multimeter. Repair any low/absent voltages or poor grounds.
  6. Use dealer-level scan tool (if available) to read CD drive/optical pickup status, read error counters, and check for software updates or known defects.
  7. If intermittent or only certain discs fail, consider cleaning or servicing the optical pickup. Some units respond to in-unit CD drive cleaning.
  8. If the unit shows internal mechanical or optical faults, replace or repair the CD/navigation head unit. Confirm repair by re-checking for stored codes and by testing with multiple discs.
  9. After repair, clear codes, perform functional test and road test if required. Verify no recurrence of B2464.

Likely causes

  • Dirty, scratched or incompatible disc
  • Failing optical pickup (laser) or drive mechanics
  • Corrupted/badly burned disc
  • Poor electrical connection (power/ground) to the head unit

Fault status

⚠️ Status
Navigation CD player reported a decoding/read error — the unit could not decode the disc data.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

B2460 B2461 B2462 B2463 B2465
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

B2464

Other B — Body

Aux Heater Start Time Exceeded

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

Causes

  • Dirty, scratched, warped or incompatible CD/disc
  • Optical pickup (laser) or servo mechanism failure in the CD drive
  • Corrupted or unreadable data on the disc (burned disc or bad media)
  • Intermittent or low power / bad ground to the head unit
  • Damaged wiring harness or poor connector/contact to the CD mechanism
  • Software/firmware bug in navigation/head unit

Symptoms

  • Navigation head unit displays a CD decoding or read error
  • CD will not play or skips frequently
  • Audio stops or drops out when using CD-based navigation audio
  • Head unit may hang, reset, or show error messages when CD inserted
  • No sound from CD playback while other audio sources work normally

What to check

  • Verify code with a scan tool; record any additional related DTCs
  • Try multiple known-good commercial audio CDs and a known-good burned disc if applicable
  • Inspect discs for scratches, dirt, or warping; clean/retry
  • Check power and ground at the head unit (12V constant/ignition, ground) with a meter
  • Visually inspect the audio/navigation head unit and CD-mechanism connectors for corrosion, bent pins, and secure fit
  • Check for water intrusion or signs of contamination in the unit

Signal parameters

  • Battery/ignition supply voltage to head unit (expected ~11–14.5 V)
  • Ground continuity and resistance at head unit chassis ground
  • Disc present sensor status (if available)
  • CD transport/servo status / optical pickup activity (if available via dealer scan tool)
  • CAN/CAN-FD or MOST bus messages between radio/navigation and audio modules (error/no comms)
  • CD error counters or internal read/CRC error counts (from diagnostic tool)

Diagnostic algorithm

  1. Confirm the B2464 code with a scan tool and note freeze frame or related codes.
  2. Reproduce the symptom: insert the original disc and observe behavior; try several known-good commercial CDs.
  3. Inspect and clean the disc(s) and retest. If commercial discs read OK but specific disc fails, treat as bad media.
  4. Inspect connectors and wiring at the back of the head unit for corrosion, loose pins, or damage. Wiggle-test harness while observing operation.
  5. Measure supply and ground at the head unit with a multimeter. Repair any low/absent voltages or poor grounds.
  6. Use dealer-level scan tool (if available) to read CD drive/optical pickup status, read error counters, and check for software updates or known defects.
  7. If intermittent or only certain discs fail, consider cleaning or servicing the optical pickup. Some units respond to in-unit CD drive cleaning.
  8. If the unit shows internal mechanical or optical faults, replace or repair the CD/navigation head unit. Confirm repair by re-checking for stored codes and by testing with multiple discs.
  9. After repair, clear codes, perform functional test and road test if required. Verify no recurrence of B2464.

Likely causes

  • Dirty, scratched or incompatible disc
  • Failing optical pickup (laser) or drive mechanics
  • Corrupted/badly burned disc
  • Poor electrical connection (power/ground) to the head unit

Fault status

⚠️ Status
Navigation CD player reported a decoding/read error — the unit could not decode the disc data.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

B2460 B2461 B2462 B2463 B2465
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