C1982

Code

LAND ROVER C — Chassis

Driver seat track position switch - short circuit to the battery

Brand: LAND ROVER

Type: C — Chassis

Views: UK: 16 EN: 23 RU: 18

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Page language: EN

Causes

Damaged or chafed wiring harness in seat track (pinched by track movement)
Faulty/shorted driver seat track position switch (internal failure)
Corroded or damaged connector making contact with battery positive
Aftermarket accessories or poor previous repairs introducing a direct feed to the signal wire
Faulty seat control module or intermittent internal short in module

Symptoms

Steering/seat memory functions inoperative or store/recall errors
Seat adjustment may be non-responsive, move only in one direction, or stop unexpectedly
Related seat fault lamp or message on dash/infotainment cluster
DTC C1982 present in module memory and may reappear after clearing

What to check

Read and record all stored DTCs and freeze-frame data with a suitable diagnostic tool
Visually inspect the seat track area for damaged insulation, pinched wires, and connector damage/corrosion
With ignition ON, back-probe the seat track position switch connector and measure voltages on reference, signal and supply pins (compare to OEM pinout)
Inspect and tug-test wiring harness where it routes through the seat and into the floor for broken/shorted conductors
Check related fuses and supply circuits for signs of overheating or damage
Consult wiring diagram/connector views to identify pin functions before probing

Signal parameters

Reference/supply should be as specified in the vehicle wiring diagram (typically a 5V reference or 12V supply from the seat power circuit)
Normal signal from a position switch/sensor should vary with track motion (voltage or resistance change); it should not be a steady battery voltage
When a short-to-battery fault is present the signal/conductor will measure approximately battery voltage (~12V) constant
Resistance from the signal wire to battery positive will be abnormally low when shorted (near 0 Ω)

Diagnostic algorithm

Record code and related DTCs with a scan tool, note freeze-frame and re-create condition if possible
Perform a visual inspection of seat track, harness, connectors and seat control module for damage or corrosion
Disable battery power and follow manufacturer SRS/battery safety procedure before performing intrusive work on seats or occupant systems
Remove trim as needed and inspect harness routing; look for chafing points where wires pass around the track
With ignition ON and using the wiring diagram, back-probe the connector at the seat track position switch and verify reference, signal and ground voltages. Compare to expected values
If signal reads battery voltage, isolate the short by disconnecting the switch connector: if the voltage disappears downstream, fault is in switch or harness between connector and battery feed; if it remains, fault is upstream/module/connector
Use a multimeter to check continuity between the signal wire and battery positive to confirm a short to B+; measure resistance with battery disconnected to locate near-zero resistance path
Wiggle test the harness while observing voltage or continuity to find intermittent shorts caused by movement of the seat track
If a wiring fault is found, repair by replacing damaged sections, re-routing or protecting the harness with loom/heat-shrink and secure to prevent future chafing
If wiring and connectors test OK, test/replace the seat track position switch and, if necessary, the seat control module per OEM procedures
Clear DTCs and perform functional test/road test to verify repair. Re-scan for reappearance of code

Likely causes

Wire insulation rubbed through where it passes over or near the seat track and contacting battery-positive conductor or metal chassis
Driver seat track position switch internal short to its 12V supply
Connector terminal pushed onto the wrong pin or contaminated with conductive debris
Poor/lifted wiring loom routing after seat removal; wire trapped and shorting under load

Fault status

⚠️ Status

Driver seat track position switch - short circuit to battery

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-1.5 hours

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C1982 — Driver seat track position switch - short circuit to the battery