Code 71 - EGR Malfunction

The is normally closed or a clogged hose. There is an open circuit in EGR gas temp. sensor signal (THG).

Trouble Area:

• EGR valve
• EGR hose
• EGR gas temperature sensor circuit
• EGR gas temperature sensor
• ECU

Fig 1: Code 71 - EGR Malfunction Schematic

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Fig 2: Code 71 - EGR Malfunction Flow Chart

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