B1098

Code

LAND ROVER B — Body

Left position lamp

Brand: LAND ROVER

Type: B — Body

Views: UK: 24 EN: 41 RU: 29

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Page language: EN

Causes

Burnt or failed left position lamp (bulb or LED module)
Open or shorted wiring in the left position lamp circuit
Corroded or poorly connected lamp socket/connector
Blown fuse or related power supply fault
Faulty ground at lamp or chassis
Body control module (BCM) / lighting module output fault or coding error

Symptoms

Left position/parking lamp does not illuminate
Intermittent operation of left position lamp
Dashboard/cluster lamp warning or message
Other exterior lighting behaving normally or related lamp warnings
Possible error lamp or stored DTCs related to lighting control

What to check

Visually inspect the left position lamp for damage or water ingress
Check the lamp socket and connector for corrosion, bent pins, or poor fit
Verify associated fuse(s) and relays for continuity and correct rating
Use a scan tool to read the specific DTC, freeze frame and any related codes
Measure battery voltage at the lamp connector with lamp commanded ON
Check continuity and resistance between the lamp socket and the BCM

Signal parameters

Expected supply voltage at lamp connector when ON: ~11–14 V (battery voltage)
Expected voltage at lamp connector when OFF: near 0 V (or PWM rest state for some modules)
Filament bulb typical resistance cold: low ohms (varies by wattage); open circuit indicates bulb failure
LED lamp modules may use PWM; check for square wave (variable duty) output from BCM with scope
Continuity from lamp positive pin to BCM output pin: near 0 Ω–a few ohms; open = infinite Ω

Diagnostic algorithm

Confirm the fault: turn on position lamps and verify left lamp does not illuminate while right lamp does.
Visually inspect the lamp and socket. If a replaceable bulb is fitted, remove and inspect filament or replace with known-good bulb.
Check fuses/relays supplying the lighting circuits. Replace any blown fuses with correct rating.
With lamp bulb removed, measure voltage at the positive pin of the socket while lamp is commanded ON. If no voltage, proceed to wiring/BCM checks.
Check ground at the socket: measure resistance to chassis/negative battery. Repair any high-resistance ground.
If supply voltage is present and ground is good but lamp still fails, test with a known-good lamp or bench test the removed unit.
Perform continuity checks from the socket back to the BCM connector; repair any open or shorted wires.
If wiring and lamp are good, use a scan tool to check BCM outputs and module fault status. Check for communication errors on vehicle bus (CAN) that might affect lighting control.
If BCM output appears suspect and wiring is confirmed good, consider BCM replacement or reprogramming per manufacturer procedures.
Clear the code, cycle the lighting, and road-test/repeat checks to confirm the repair. Document intermittent faults and re-check if the code returns.

Likely causes

Failed bulb or LED unit
Corroded/loose connector at lamp
Open circuit in wiring between lamp and BCM
Ground connection high resistance
BCM output failed or module communication error

Fault status

⚠️ Status

Left position lamp circuit fault detected — open/short/high resistance or lamp not detected. Service required to inspect lamp, connector, wiring and module.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-1.5 hours

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Repair manuals

Manual library for LAND ROVER

292

Browse 292 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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