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Home >> Land Rover >> 2018 >> Range Rover Velar Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine Emission Control - INGENIUM I4 2.0L Diesel -- Range Rover Velar/L560) >> Engine Emission Control - INGENIUM I4 2.0L Diesel >> Diagnosis And Testing >> Engine Emission Control - INGENIUM I4 2.0L Diesel (G1851019) >> Inspection And Verification

Inspection And Verification

WARNING: This page is about a different variant/trim than selected.
CAUTION: Diagnosis by substitution from a donor vehicle is NOT  acceptable. Substitution of control modules does not guarantee confirmation of a fault, this may also cause additional faults in the vehicle being tested and/or the donor vehicle.
NOTE:
  • If a control module or a component is at fault or may be at fault and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures information. Determine if prior approval is required before installation of a new control module or a component.
  • When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with an up-to-date calibration certificate. When testing resistance always take the resistance of the digital multimeter leads into account.
  • Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
  1. Verify the customer concern
  2. Visually inspect for obvious signs of damage and system integrity
VISUAL INSPECTION

MECHANICAL ELECTRICAL
  • Positive crankcase ventilation system
  • Exhaust gas recirculation pipes
  • Exhaust gas recirculation valve
  • Exhaust gas recirculation cooler
  • Exhaust gas recirculation cooler by-pass valve
  • Vacuum system
  • Fuses
  • Wiring harnesses and connectors
  • Powertrain control module
  • Intake air shut off throttle
  • Exhaust gas recirculation valve
  • Exhaust gas recirculation cooler inlet/outlet temperature/pressure sensor(s)
  • Crank case ventilation pressure control valve
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
  2. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, check for Diagnostic Trouble Codes (Diagnostic Trouble Code(s)), refer to the DTC Index
  3. Check the JLR claims submission system for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific customer complaint, completing the procedure as required
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