B11AA

Code

LAND ROVER B — Body

Button of leisure

Brand: LAND ROVER

Type: B — Body

Views: UK: 13 EN: 19 RU: 13

AI status

Completed

ready

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Page language: EN

Causes

Faulty/leaking or stuck leisure mode button/switch
Open or short in button wiring or connector
Corroded or loose connector pins at the switch or BCM
Blown fuse supplying the button circuit or illumination
Faulty Body Control Module (BCM) or related control unit
Software or configuration error in vehicle network

Symptoms

Leisure mode does not activate when button is pressed
Button illumination inoperative or intermittent
Instrument cluster or message centre shows an error or warning
Intermittent or no response from the leisure function
Related functions controlled by the same switch cluster behave erratically

What to check

Read all stored and pending diagnostic trouble codes and freeze frame data with a suitable diagnostic tool
Perform visual inspection of the switch, surrounding trim and wiring for damage or water ingress
Check relevant fuses and replace if blown
Operate the switch while monitoring input at the connector for continuity or voltage change
Inspect and gently wiggle the harness and connectors while observing for intermittent changes
Check for related CAN/BUS communication faults that may affect the BCM

Signal parameters

Switch input: expected change between reference voltage and ground when pressed (vehicle dependent; typically a switched ground or 5 V reference input)
Switch illumination: 12 V supply or PWM dimming signal (check for presence)
Diagnostic data: corresponding button press message visible on body module input channel via diagnostic tool
Resistance: closed switch should show near 0 Ω between contacts; open switch OL/infinite

Diagnostic algorithm

Use a diagnostic scanner to confirm B11AA and read any related B‑codes or body module events.
Check and record the state of relevant fuses; replace if necessary and re-check the code.
Visually inspect the switch assembly and surrounding area for physical damage or moisture.
Remove the switch trim/panel to access the switch connector. With ignition on, backprobe the switch connector and verify signal behaviour while pressing the button (measure voltage or continuity as per vehicle wiring).
If the switch signal is absent or incorrect, disconnect the switch and measure resistance across its terminals to verify proper open/closed values. Replace the switch if out of specification.
If the switch tests good, inspect wiring for continuity between the switch connector and the BCM input pin. Repair any open/shorts or damaged insulation.
Check connector pins for corrosion or poor contact; clean and repair as required.
If wiring and switch are good, use the diagnostic tool to monitor the BCM input and CAN data while operating the switch. If the BCM does not register the input, consider BCM internal fault.
Reprogram or update BCM software if a known software fault exists (consult technical service bulletins).
After repair, clear codes and verify proper operation over a short road/test cycle. Re-scan to confirm B11AA does not return.

Likely causes

Switch contacts or internal mechanism failed (most common)
Wiring harness damaged (chafing, water ingress)
Connector contamination or poor mating
Related fuse blown
BCM input circuit degraded or failed

Fault status

⚠️ Status

Leisure button circuit fault – input missing or implausible to the body control module.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

Repair manuals

Manual library for LAND ROVER

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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