B1B60

Code

LAND ROVER B — Body

Feedback potentiometer circuit

Brand: LAND ROVER

Type: B — Body

Views: UK: 10 EN: 20 RU: 10

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Page language: EN

Causes

Damaged or chafed wiring harness
Corroded, loose or contaminated connector pins
Failed/ worn potentiometer (sensor)
Short to battery or ground in signal/reference wire
Poor ground or missing reference voltage from module
Water ingress or contamination at sensor or connector

Symptoms

Stored B1B60 DTC, possible subsystem warning message or lamp
Loss or degradation of the affected system’s function (depends on which potentiometer)
Erratic, pegged or frozen position readings in live data
Intermittent operation that may change with vibration or connector movement
Failure to calibrate or complete teach-in procedures

What to check

Retrieve fault(s) and freeze‑frame data with a compatible diagnostic tool
Confirm exact component and pinout for B1B60 using vehicle-specific wiring diagram
Visually inspect connector and wiring for corrosion, damage, heat, or water ingress
Check for related stored codes that may point to common power/ground issues
Backprobe sensor connector to measure reference voltage, signal voltage and ground with ignition ON (engine OFF unless service manual specifies)
Wiggle wiring harness and connector while observing live data for intermittent changes

Signal parameters

Typical reference voltage: ≈4.5–5.0 V (vehicle-specific; check manual)
Signal voltage range: ≈0.0–5.0 V corresponding to sensor travel
Potentiometer resistance (if applicable): commonly 1–10 kΩ depending on sensor design
No open circuit (infinite resistance) or direct short to ground/battery on signal/reference lines

Diagnostic algorithm

Use scan tool to read B1B60 and any related codes, record live data and freeze frame. Identify the exact sensor/potentiometer referenced in the vehicle manual.
Visually inspect the sensor, connector and harness for damage, corrosion, water, or loose retainers. Repair obvious issues.
With ignition ON (per service manual), backprobe connector: verify reference voltage at the sensor connector, good ground, and signal voltage. Compare to expected ranges above.
Operate the sensor mechanically (move lever/shaft) while watching signal voltage for smooth change—look for dead spots, jumps or no change.
If signal is fixed or out of range, check continuity from sensor connector to module pin and for shorts to ground/battery. Repair wiring as needed.
If wiring tests OK, remove and bench‑test the potentiometer (measure resistance sweep if accessible) or replace sensor with a known good unit.
After repair or replacement, clear codes, perform any required relearn/calibration procedure, and road/test to confirm fault does not return.
If fault persists after sensor and wiring replacement, test or replace the control module only after verifying all other items and consulting manufacturer guidance.

Likely causes

Corroded/loose connector at the potentiometer
Open or short in the signal or reference wiring (most likely at a flex point)
Failed potentiometer element due to wear or contamination
Missing reference voltage or ground from the module

Fault status

⚠️ Status

Feedback potentiometer circuit fault — open, short, out‑of‑range or intermittent signal detected. Inspect sensor, connector, wiring and module inputs; confirm reference, signal and ground.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0 - 2.5 hours

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Repair manuals

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Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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