Lexus IS250 IS220d GSE20 ALE20 2AD-FHV ENGINE CONTROL SYSTEM

DESCRIPTION

INSPECTION PROCEDURE

CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0069)

DTC P0069 MAP Sensor Too High or Too Low

DESCRIPTION

To detect atmospheric pressure, the atmospheric pressure sensor built into the ECM is used in the common rail system. Following the changes in the atmospheric pressure, the ECM corrects the fuel injection volume, timing and duration, and adjusts the common rail internal fuel pressure for optimizing combustion.

DTC No.DTC Detection ConditionTrouble Area
P0069 Atmospheric pressure sensor malfunction
(2 trip detection logic)
ECM

INSPECTION PROCEDURE

1.CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0069)

Read the DTCs using the intelligent tester.

  • Result:
  • Display (DTC output)Proceed to
    P0069 and other DTCsA
    P0069B
  • HINT:
  • If codes other than P0069 are output, perform troubleshooting for those DTCs first.
B
REPLACE ECM
A
GO TO DTC CHART