B1715

Code

LAND ROVER B — Body

Front switch of driver's seat - short circuit for battery

Brand: LAND ROVER

Type: B — Body

Views: UK: 18 EN: 47 RU: 18

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Page language: EN

Causes

Damaged front driver's seat switch (internal short)
Short circuit in seat wiring harness to battery positive (chafing, pinched cable, or repair splice)
Corroded or bridged connector (water ingress or contamination)
Faulty seat control/module with internal short
Aftermarket accessory or poor previous repair creating a permanent feed to the circuit
Blown or incorrect fuse/relay allowing battery feed where not intended

Symptoms

Seat functions operate erratically or constantly
Seat will not respond correctly to switch inputs
Blown fuse(s) related to seat circuit(s)
Battery drain / parasitic draw when vehicle is off
Associated fault codes stored in body/seat module or CAN messages
Possible warning messages or reduced functionality of seat memory

What to check

Read DTCs and any freeze-frame/related codes from seat/body modules with a suitable diagnostic scanner
Visually inspect seat wiring, connectors and switch for damage, corrosion, water or aftermarket splices
Check related fuse(s) and fuses' holders for signs of overheating or short
Backprob/sense voltage at the seat switch connector with ignition off and on — watch for unexpected permanent battery voltage
Measure resistance between suspect circuit and battery positive with ignition off to detect a short (low ohms indicates short)
Disconnect the seat switch/seat module and see if code clears or the short condition disappears to isolate component vs harness

Signal parameters

Battery voltage ≈ 12.0–13.0 V present at circuit when it should be 0 V or high-impedance indicates short to battery
Low resistance (< 5 ohm) between the seat switch feed and battery positive indicates a direct short
Open-circuit or high resistance on expected switched feed when operated may indicate internal switch failure
No CAN communication or additional body module errors can be present if seat module is disabled

Diagnostic algorithm

Retrieve and record all stored DTCs and freeze-frame data from the body/seat modules with a diagnostic tool.
Follow safety procedure: turn ignition off, remove ignition key, and disconnect the negative battery terminal if instructed by the vehicle manufacturer before accessing seat wiring. Wait the manufacturer-specified time for stored energy to dissipate (airbag/seat restraint considerations).
Visually inspect seat switch, connectors (under seat and in sill), wiring looms and fuse panel for damage, corrosion, water ingress or aftermarket modifications.
With ignition off, disconnect the front driver's seat switch connector. Measure resistance between the circuit feed and battery positive. A near-zero reading indicates a short to battery in the harness or downstream module.
With connector disconnected, check whether the code reappears after clearing. If the fault does not reappear, suspect the switch. If it does reappear, suspect wiring or the seat control/module.
Backprobe the switch connector with ignition on and actuate the switch to observe expected voltages. Compare to manufacturer wiring diagrams for pin functions.
If wiring short suspected, isolate sections by unplugging intermediate connectors (seat-to-sill, under-dash) until the short disappears — inspect and repair the section with the fault.
If the switch or seat control module is identified as faulty, replace the failed component. Repair or replace damaged wiring and connectors, using manufacturer repair methods and corrosion protection.
After repairs, clear DTCs and perform full function test of seat operations. Re-scan to confirm the fault does not return and check for any related stored codes.
If module replacement is performed, follow any required programming/initialization procedures per manufacturer service information.

Likely causes

Wiring chafe or pinched conductor in seat harness causing contact with battery positive
Failed/shorted front driver's seat switch
Corroded/bridged connector at the seat or under-dash junction
Faulty seat control module with internal short

Fault status

⚠️ Status

Front driver's seat switch circuit — short to battery (unexpected constant positive voltage on circuit).

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-3.0 hours

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B1715 — Front switch of driver's seat - short circuit for battery