B1967

Code

LAND ROVER B — Body

Air outlet temperature sensor - short circuit to ground

Brand: LAND ROVER

Type: B — Body

Views: UK: 12 EN: 13 RU: 15

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Page language: EN

Causes

Damaged or chafed wiring harness causing conductor contact with chassis ground
Corroded, bent, or contaminated connector pins
Internal short in the air outlet temperature sensor
Water ingress into connector or sensor assembly
Poor repair or aftermarket device spliced into the circuit
HVAC control module fault (less common)

Symptoms

HVAC incorrect or fixed outlet temperature (too cold/too hot)
Climate control displays fault or reduced functionality
Duct outlet temperatures do not change with control inputs
DTC B1967 stored and may return after clearing
HVAC blower/actuators may go to a default mode or cycle

What to check

Use a scan tool to read HVAC sensor values and confirm B1967 is present; note freeze-frame data if available
Visually inspect sensor, connector and harness for damage, corrosion, water, or pinch points
With ignition ON (engine off), backprobe the sensor connector to measure signal voltage and compare to expected range
Disconnect the sensor and measure resistance between the signal pin and chassis ground (should be open/high resistance if no short)
Perform wiggle test on harness while monitoring signal for intermittent shorts
Check continuity between sensor ground and chassis ground to verify intended grounding

Signal parameters

Sensor type: typically an NTC thermistor (analog temperature sensor)
Behavior: resistance decreases as temperature increases (thermistor characteristic)
Typical signal: analog voltage to HVAC control module in the low-to-mid voltage range (varies by model)
Expected resistance/voltage is manufacturer-specific; typical room-temp resistance often falls in the kilohm range (refer to Land Rover service data for exact values)

Diagnostic algorithm

Connect an OEM-capable scan tool, read and record the code(s) and live sensor values. Clear the code and attempt to re-create the fault.
Visually inspect the air outlet temperature sensor, harness and connector for damage, corrosion or moisture. Repair any obvious issues.
With ignition ON and sensor connected, backprobe the signal wire and measure voltage. If voltage is near 0V or pinned to ground, suspect short to ground.
Turn ignition OFF, disconnect the sensor and measure resistance between the signal terminal and chassis ground. A low resistance indicates a short in the harness or control module.
Measure the sensor resistance directly (remove sensor if required) while changing ambient temperature (finger warm/cold or controlled source) to confirm thermistor behavior. Compare to manufacturer spec.
Isolate the harness: if short exists with sensor disconnected, trace wiring toward the HVAC control module in sections and check for continuity to ground to locate the shorted section.
Repair wiring or connector: replace damaged sections with proper automotive-grade wire, repair corroded pins or replace the connector, ensure proper sealing against moisture.
If wiring and connector test good but fault remains, test/inspect the HVAC control module input circuit per factory manual; replace control module only after confirming upstream wiring and sensor are good.
After repairs, clear codes, verify live sensor readings return to expected range and perform functional test of HVAC modes to ensure fault does not return.
If replacement of sensor or module performed, follow any manufacturer programming/calibration procedures before final verification.

Likely causes

Wiring insulation abraded where harness routes near body panels or HVAC components
Connector exposed to moisture leading to corrosion and shorting
Failed sensor element with internal short to sensor ground
Recent service, connector disturbed or pins pushed/crossed during reassembly

Fault status

⚠️ Status

Air outlet temperature sensor — short circuit to ground detected

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-2.0 hours

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B1967 — Air outlet temperature sensor - short circuit to ground