(From page
11-104
)
Is there battery voltage?
YES
Repair open in the wire between
No. 20 ECU (PCM) (20 A) fuse in
the under-dash fuse/relay box
and spark plug voltage detection
module.
Substitute a known-good spark
plug voltage detection module
and recheck.
Is DTC P1318 and/or P1319
indicated?
Replace the original spark plug
voltage detection module.
YES
Substitute a known-good PCM
and recheck (see page
11-42
for
immobilizer information). If symp-
tom/indication goes away, replace
the original PCM.
NO
NO
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