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7B-46 AUTOMATIC TRANSMISSION (4 A/T)
Step
4
1) Turn ignition switch OFF and connect ECM
couplers.
2) Turn ignition switch ON and measure volt-
age between terminal "C43-5" of discon-
nected harness side TCM coupler and body
ground.
Is it 10 – 14 V?
Action
Yes
Intermittent trouble or
faulty ECM or TCM.
Check for intermittent
referring to "INTERMIT-
TENT AND POOR CON-
NECTION" in Section 0A.
If no trouble found, substi-
tute a known-good ECM
or TCM and recheck.
No
"BRN" wire is shorted to
power circuit or faulty
ECM.
If "BRN" wire is OK, sub-
stitute a known-good
ECM and recheck.
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