Land Rover Defender manuals

Land Rover Defender: Exhaust System - Diagnosis and Testing

Land Rover Defender 2020-2024 Service Manual / Powertrain / Exhaust System / Exhaust System - Diagnosis and Testing

DIAGNOSIS AND TESTING

PRINCIPLES OF OPERATION

For a detailed description of the Exhaust System, refer to the relevant Description and Operation section in the workshop manual.

INSPECTION, VERIFICATION AND ADDITIONAL WARNINGS FOR ELECTRIC VEHICLES

WARNINGS:

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.

NOTES:

  1. Verify the customer concern
  2. Visually inspect for obvious signs of damage and system integrity

Visual Inspection

Exhaust System

  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, alternatively check for Diagnostic Trouble Codes (DTCs) and 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 and complete the recommendations as required

SYMPTOM CHART

Exhaust System

Exhaust System

Exhaust System

CONTROL MODULE CAVITY

Exhaust System

Exhaust System

Exhaust System

DIAGNOSTIC ROUTINES

Exhaust System

PARAMETER IDENTIFIER (PID)

Exhaust System

Exhaust System

GASOLINE PARTICULATE FILTER

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

Exhaust System

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