Check for continuity between the ECM connector A (44P)
*1
(49P)
*2
terminals No. 36
*1
(No. 3)
*2
and No. 37
*1
(No. 4)
*2
and body ground individually.
*1:
R18A2 engine and K20Z4 engine
*2:
L13Z1 engine
Are there continuity?
YES
-
Update the ECM if it does not have the latest software, or substitute a known-good ECM (
R18A2 engine
,
L13Z1 engine
), and recheck. If DTC B1168 is indicated again, replace the
gauge control module
(tach).■