Symptom Chart

WARNING: This page is about a different variant/trim than selected.

SYMPTOM	POSSIBLE CAUSES	ACTION
Engine malfunction lamp illuminated Or Reagent indicator (17MY on)	Selective catalyst reduction system failure Diesel exhaust fluid level too low Power or ground failure Diesel exhaust fluid pressure too low Diesel exhaust fluid pressure too high Diesel exhaust fluid injection pump Diesel exhaust fluid injector Diesel exhaust fluid relay Diesel exhaust fluid heater control unit Pre selective catalytic reduction NOx sensor Pre selective catalyst reduction NOx sensor module Post selective catalyst reduction NOx sensor Post selective catalyst reduction NOx sensor module Post selective catalyst reduction Particulate Matter Sensor Post selective catalyst reduction Particulate Matter Sensor module Diesel sub net Controller Area Network (CAN) communication bus	Using the Jaguar Land Rover Approved Diagnostic Equipment check powertrain control module for related Diagnostic Trouble Code(s) and refer to relevant DTC index Check and correct the diesel exhaust fluid level Refer to the appropriate system wiring diagrams and check connections are secure and wiring integrity Refer to the repair information and the battery care information, inspect the vehicle battery and make sure it is fully charged and serviceable before performing further tests Inspect connectors for signs of water ingress, and pins for damage and/or corrosion Refer to the appropriate system wiring diagrams and check sensor, relays/fuses and control module power feeds and grounds Check system for correct installation of components Check system mechanical and fluid integrity Check system for mechanical integrity Check system for leakage Check system for blockage
Engine will not crank	Vehicle battery failure Diesel exhaust fluid level too low or empty Harness failure - Wiring integrity	Refer to the repair information and the battery care information, inspect the vehicle battery and make sure it is fully charged and serviceable before performing further tests Inspect connectors for signs of water ingress, and pins for damage and/or corrosion Check and correct the diesel exhaust fluid level Using the Jaguar Land Rover Approved Diagnostic Equipment complete Service Functions - Reset Selective Catalyst Reduction Start Inhibit
Message warning and/or DEF warning symbol is illuminated	Selective catalyst reduction system failure A monitor of the historical diesel exhaust fluid consumption rate, allied with a direct reading of the diesel exhaust fluid level in the tank, predicts that the distance to emptying the tank is less than 2400km	Using the Jaguar Land Rover Approved Diagnostic Equipment check powertrain control module for related Diagnostic Trouble Code(s) and refer to relevant DTC index Check and correct the diesel exhaust fluid level The DEF warning symbol illumination has 3 different colors which is determined by fluid level in the tank. For further information on the DEF warning symbols, refer to DEF Level found further down this page