B1014

Code

LAND ROVER B — Body

Switch of recirculation

Brand: LAND ROVER

Type: B — Body

Views: UK: 39 EN: 38 RU: 34

AI status

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Page language: EN

Causes

Faulty recirculation switch (mechanical or electrical failure)
Open or short in switch wiring or connector corrosion/damage
Poor connector pin contact or bent pins at switch or HVAC control module
Blown fuse or poor ground for the HVAC control circuit
Faulty HVAC control module or related body control module
Software/firmware issue or intermittent CAN/LIN communication fault

Symptoms

Recirculation mode not engaging or stuck in fresh-air mode
Recirculation indicator on dash does not illuminate or flickers
HVAC behaves intermittently when pressing recirculation button
Related HVAC functions may operate incorrectly or show an error in the instrument cluster
DTC B1014 stored in module memory

What to check

Read current and stored codes and freeze-frame data with an OEM-level scanner
Attempt to operate recirculation switch while monitoring live data/inputs for the HVAC control module
Inspect switch and wiring harness visually for damage, corrosion, water ingress, or loose connectors
Check relevant fuses and ground points for the HVAC control circuit
Backprobe the switch connector and measure voltage and signal changes while switching
Verify module power and ground at the HVAC/control module connector

Signal parameters

Switch open: expected open-circuit or defined logical ‘off’ signal (depends on vehicle), typically near battery voltage or pulled to Vb through resistor
Switch closed: expected continuity to ground or a defined logical ‘on’ voltage change (0–12 V range depending on design)
Resistance across switch contacts when pressed: near 0 Ω if mechanical closed-contact switch
Diagnostic tool live-data: recirculation input bit should toggle when button pressed

Diagnostic algorithm

Connect an OEM-level scan tool; record and clear codes, then attempt to re-create the fault. Note freeze-frame/live-data when fault sets.
Visually inspect recirculation switch, bezel, and harness for damage, moisture, or loose connectors. Repair any obvious wiring issues.
With ignition ON, backprobe the switch connector. Operate the switch and observe voltage/resistance change on the signal pin vs ground and vs battery. Compare to expected values in the wiring diagram.
Check fuses and module power/ground circuits for proper voltage and continuity. Repair any open grounds or power faults.
If wiring and power/ground are good, unplug the switch and measure resistance across switch terminals (if applicable) to verify mechanical contact operation. Replace switch if out of spec.
If switch tests good but module input does not change when switch operated, inspect/repair wiring between switch and HVAC module or test for CAN/LIN communication faults per wiring diagram.
If wiring and communications are good but module input remains incorrect, consider HVAC control module or body control module fault—verify with OEM diagnostic procedures before replacement.
After repair, clear codes and verify correct operation over time and in different conditions to ensure fault does not recur.

Likely causes

Failed recirculation switch
Corroded/loose connector at switch
Damaged harness between switch and HVAC module

Fault status

⚠️ Status

HVAC recirculation switch circuit fault detected. Recirculation input not behaving as expected.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-1.5 hours

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B1014 — Switch of recirculation