EDI DIAGNOSIS
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 5E-29
TEST DESCRIPTION
Verify failure using either the Blink Code Tool and/or Scan Tool. There are no individual
circuits to be tested. All BARO sensor circuits are inside the ECM and are not serviceable.
DIAGNOSTIC HELP:
BARO Sensor failure influences engine performance as follows:
• The engine behavior does not change noticeably when the engine is operated at or
near sea level. It is acceptable to operate the engine with this failure, unless there is
a complaint.
• If the engine is most frequently operated at high altitude [elevation higher than
4900 ft (1500 m)] it is suggested that the ECM be replaced.