The scan tool indicates Diagnostic Trouble Code (DTC) P1107: A low voltage problem in the Baro sensor circuit.
The scan tool indicates Diagnostic Trouble Code (DTC) P1108: A high voltage problem in the Baro sensor
circuit.
— The MIL has been reported on.
— DTC P1107 or P1108 is stored.
Problem verification:
1. Do the PCM Reset Procedure.
2. Turn the ignition switch ON (II).
Is DTC P1108 indicated?
NO
Substitute a known-good PCM
and recheck (see page
11-42
for
immobilizer information). If symp-
tom/indication goes away, replace
the original PCM.
Is DTC P1107 indicated?
NO
(With TCS only)
YES
Intermittent failure, system is OK
at this time.
Check for poor connections or
loose wires at C444 (located
behind right kick panel), C624
(TCS control unit) and PCM.
Check for a short in the wire
(BARO OUT line):
1. Turn the ignition switch OFF.
2. Disconnect the PCM connec-
tor D (22P).
3. Disconnect the 20P connector
from the TCS control unit.
4. Check for continuity between
body ground and PCM con-
nector terminal D3.
PCM CONNECTOR D (22P)
BARO OUT
(GRN/ORN)
Is there continuity?
Repair short in the wire between
PCM (D3) and TCS control unit.
Wire side of female terminals
NO
Substitute a known-good TCS
control unit and recheck.
Is DTC P1107 indicated?
Replace the original TCS control
unit.
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
YES
YES
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