LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Land Rover >> 2010 >> LR4 Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> DTC Index & General Information (1 Of 3) >> General Information >> Description & Operation >> DTC: Audio Amplifier Module (AAM) >> Audio Amplifier Module (AAM) >> DTC's
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Audio Amplifier Module (AAM): DTC's

DTC Description Possible Causes Action
B1A00-49 Control Module - Internal electronic failure
  • Amplifier internal electrical failure(can be set in more than one module)
  • Touch screen display (TSD) internal electrical failure(can be set in more than one module)
 Refer to the electrical guides and check the power and ground circuits to the module. Refer to the warranty policy and procedures information if a module is suspect
B1A00-4B Control Module - Over temperature
  • Amplifier shutdown requested (over-temperature)
 Clear the DTC and retest. Consider the atmospheric conditions before suspecting a module
B1A01-13 Speaker #1 - Circuit open
  • Left-hand rear door speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A01-1A Speaker #1 - Circuit resistance below threshold
  • Left-hand rear door speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A02-13 Speaker #2 - Circuit open
  • Right-hand rear door speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A02-1A Speaker #2 - Circuit resistance below threshold
  • Right-hand rear door speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A03-13 Speaker #3 - Circuit open
  • Left-hand front mid/high range speaker circuit open circuit
  • Left-hand door speaker circuit open circuit
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A03-1A Speaker #3 - Circuit resistance below threshold
  • Left-hand door speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A04-13 Speaker #4 - Circuit open
  • Right-hand front mid/high range speaker circuit open circuit
  • Right-hand door speaker circuit open circuit
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A04-1A Speaker #4 - Circuit resistance below threshold
  • Right-hand door speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A05-13 Speaker #5 - circuit open
  • Left-hand bass speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A05-1A Speaker #5 - circuit resistance below threshold
  • Left-hand bass speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A05-13 Speaker #5 - Circuit open
  • Left-hand bass speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A05-1A Speaker #5 - Circuit resistance below threshold
  • Left-hand bass speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A06-13 Speaker #6 - Circuit open
  • Right-hand bass speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A06-1A Speaker #6 - Circuit resistance below threshold
  • Right-hand bass speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A07-13 Speaker #7 - Circuit open
  • Left-hand front bass speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A07-1A Speaker #7 - Circuit resistance below threshold
  • Left-hand front bass speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A08-13 Speaker #8 - Circuit open
  • Right-hand front bass speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A08-1A Speaker #8 - Circuit resistance below threshold
  • Right-hand front bass speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A09-13 Speaker #9 - Circuit open
  • Left-hand rear surround speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A09-1A Speaker #9 - Circuit resistance below threshold
  • Left-hand rear surround speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A11-13 Speaker #11 - Circuit open
  • Front center fill speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A11-1A Speaker #11 - Circuit resistance below threshold
  • Front center fill speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A12-13 Speaker #12 - Circuit open
  • Bass speaker circuit high resistance
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A12-1A Speaker #12 - Circuit resistance below threshold
  • Bass speaker circuit short circuit to ground
  • Speaker circuit short circuit to power
 Refer to the electrical guides and check the speaker circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1A96-68 Bus Still Active After Shut-Down Request - event information
  • Light still active 2 seconds after shut-down request
 Carry out the general media orientated system transport (MOST) test. Refer to the Network Communications section of the workshop information
B1D84-13 Headphone Panel 1 - Circuit open
  • Headphone panel 1 circuit high resistance
 Refer to the electrical guides and check the headphone circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
B1D85-13 Headphone Panel 2 - Circuit open
  • Headphone panel 2 circuit high resistance
 Refer to the electrical guides and check the power and ground circuits to the component
B1D86-13 Headphone Panel 3 - Circuit open
  • Headphone panel 3 circuit high resistance
 Refer to the electrical guides and check the power and ground circuits to the component
B1D87-13 Headphone Panel 4 - Circuit open
  • Headphone panel 4 circuit high resistance
 Refer to the electrical guides and check the headphone circuit. Where possible, refer to the guided diagnostic routine for this code on the approved diagnostic system
U3000-4A Control Module - Incorrect component installed
  • Audio unit control module, incorrect component installed

    The security of the media orientated system transport (MOST) network prevents the unauthorized addition of a module to the system. Car Configuration File does not have the 'SRM Installed' parameter set, but the module is installed to vehicle

 Configure the network to accept the module using the approved diagnostic system
U3000-55 Control Module - Not configured
  • Audio unit not configured
  • Audio Amplifier Module circuit short to ground, short to power, open circuit, high resistance
  • Equalizer setting not equal to car information of integrated head unit
 Where available, configure the module using the approved diagnostic system. check Audio Amplifier Module circuit for short to ground, short to power, open circuit, high resistance
scientia non olet · About LEMON Manuals