Mitsubishi Eclipse. Manual — part 811
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
23A-253
STEP 10. Check the harness for an open circuit or short
circuit to ground between A/T control relay connector
A-17X terminal 4 in the engine component relay box and
A/T control solenoid valve assembly connector B-40
terminal 10.
Q: Is the harness wires in good condition?
YES : Go to Step 11.
NO : Repair or replace the harness wire.
STEP 11. Check A/T control solenoid valve assembly
connector B-40 and PCM connector C-61 <2.4L Engine> or
C-63 <3.0L Engine> for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 12.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC102447AF
BATTERY
CONNECTOR: A-17X
A-17X
FRONT OF VEHICLE
ACX02479
CONNECTOR: B-40
AK
B-40
ACX02479
CONNECTOR: B-40
AK
B-40
AC001657
CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>
PCM
BC
C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-254
STEP 12. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector B-40 (terminals 6 and 7) and PCM connector
C-61 <2.4L Engine> or C-63 <3.0L Engine> (terminals 107
and 129).
Q: Are the harness wires in good condition?
YES : Go to Step 13.
NO : Repair or replace the harness wire.
STEP 13. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector B-40 (terminals 6, 7, and 10) and solenoid valve
connectors B-40-4 and B-40-5.
Q: Is the harness wire in good condition?
YES : Replace the PCM.
NO : Replace the harness wire.
ACX02479
CONNECTOR: B-40
AK
B-40
AC001657
CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>
PCM
BC
C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>
ACX02479
CONNECTOR: B-40
AK
B-40
AC002219
CONNECTORS: B-40-4, B-40-5
CI
B-40-5
VALVE BODY
ASSEMBLY
B-40-4
2
1
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
23A-255
DTC 41 (P0731): 1st Gear Incorrect Ratio
DTC 42 (P0732): 2nd Gear Incorrect Ratio
DTC 43 (P0733): 3rd Gear Incorrect Ratio
DTC 44 (P0734): 4th Gear Incorrect Ratio
DTC 46 (P0736): Reverse Gear Incorrect Ratio
AC106636
Input Shaft Speed Sensor and Output Shaft Speed Sensor System Circuit
AB
AC001850
CONNECTORS: B-38, B-42
AG
B-42
B-38
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
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.
CIRCUIT OPERATION
• The input shaft speed sensor generates a pulsed
signal of 0
⇔ 5 volts. The pulsed signal fre-
quency increases with an increase in the input
shaft speed.
• The PCM (terminal 103) continuously monitors
the input shaft speed signal.
• The output shaft speed sensor generates a
pulsed signal of 0
⇔ 5 volts. The pulsed signal
frequency increases with an increase in the out-
put shaft speed.
• The PCM (terminal 104) continuously monitors
the output shaft speed signal.
.
AC106611AB
CONNECTOR: C-28
C-28
AC001657
CONNECTORS: C-50 <2.4L ENGINE> OR
C-52 <3.0L ENGINE>, C-61 <2.4L ENGINE>
OR C-63 <3.0L ENGINE>
PCM
BG
C-50 <2.4L ENGINE> OR
C-52 <3.0L ENGINE>
C-61 <2.4L ENGINE>
OR
C-63 <3.0L ENGINE>
AC106814AB
CONNECTORS: C-111, C-112
JUNCTION BLOCK
(FRONT VIEW)
C-111
C-112
C-111
C-112
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