High Priority 91% confidence

Air conditioning stopped cooling / no response to AC button

Q: How to fix Air conditioning stopped cooling / no response to AC button in Jaguar XJ (X351)?

Replacement of the damaged pressure sensor and mandatory recalibration of the air conditioning control module (HVAC).

in Jaguar XJ (X351) (2010-2019)

Symptoms

No cold air from vents

DTC error codes

Pressure Transducer

Verifying license...

Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

(X351)

Refrigerant: R134a Amount (g): 700g Oil: JLM12260 PAO 68 lub PAG ISO 46 Oil (ml): 110ml

See full specification

Have this problem?

Generate a personalized AI report for your Jaguar XJ (X351) or book a workshop visit.

Generate AI report Schedule visit

Air conditioning stopped cooling / no response to AC button

Symptoms

DTC error codes

A/C Technical Specifications

Other problems in XJ (X351)

Have this problem?