DTC U148D Dodge

Exhaust (Bank 1 Sensor 1) Heater Return Connection

Exhaust (Bank 1 Sensor 1) Heater Return Connection

Description

Engine started, battery voltage must be at least 11.5v, all electrical components must be off, parking brake must be engaged (to keep daytime driving lights off), automatic transmission selector must be in park, the exhaust system must be properly sealed

Cause and Solution

Check activation of Recirculation Pump RelayOxygen sensor (before catalytic converter) is faultyOxygen sensor (behind catalytic converter) is faultyOxygen sensor heater (before catalytic converter) is faultyOxygen sensor heater (behind c

Video Guide

Duration: PT4M17S | Uploaded: 2020-08-22

Diagnostic Info

  • DTC Code: U148D
  • Brand: Dodge
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