Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 448
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AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
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STEP 4. Using scan tool MB991502, check data list item 15:
A/T Fluid Temperature Sensor.
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Start the engine.
(3) Set scan tool MB991502 to data reading mode for item 15:
A/T Fluid Temperature Sensor.
•
At cool condition: Almost equal to the ambient
temperature (atmospheric temperature)
•
At warm condition: 70 to 80
°
C (158 to 176
°
F)
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the sensor operating properly?
YES : This malfunction is intermittent. Refer to GROUP 00,
How to Use Troubleshooting/Inspection Service
Points
−
How to Cope with Intermittent Malfunction
NO : Replace the PCM.
STEP 5. Check connectors C-54 <2.4L Engine> or C-55
<3.0L Engine> and C-61 <2.4L Engine> or C-63 <3.0L
Engine> at PCM and B-40 at A/T control solenoid valve
assembly for damage.
Q: Are the harness connectors in good condition?
YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
AC001252
MB991502
16 PIN
AB
AC001657
CONNECTORS: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>, C-61 <2.4L ENGINE>
OR C-63 <3.0L ENGINE>
PCM
AM
C-54 <2.4L ENGINE>
OR
C-55 <3.0L ENGINE>
C-61 <2.4L ENGINE>
OR
C-63 <3.0L ENGINE>
ACX02479
CONNECTOR: B-40
AE
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AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
23A-84
STEP 6. Check the A/T fluid temperature sensor at A/T
control solenoid valve assembly connector B-40.
(1) Disconnect connector B-40 and measure at the sensor
side.
(2) Measure the resistance between terminal 1 and 2.
•
When A/T fluid temperature is 0
°
C (32
°
F), resistance
should be between 16.7 and 20.5 ohm.
•
When A/T fluid temperature is 20
°
C (68
°
F), resistance
should be between 7.3 and 8.9 ohm.
•
When A/T fluid temperature is 40
°
C (104
°
F), resistance
should be between 3.4 and 4.2 ohm.
•
When A/T fluid temperature is 80
°
C (176
°
F), resistance
should be between 1.9 and 2.2 ohm.
•
When A/T fluid temperature is 100
°
C (212
°
F),
resistance should be between 0.57 and 0.69 ohm.
Q: Is the resistance normal?
YES : Go to Step 7.
NO : Replace the A/T fluid temperature sensor. Refer to
GROUP 23B, Transaxle
.
STEP 7. Check the power supply voltage at A/T control
solenoid valve assembly connector B-40.
(1) Disconnect connector B-40 and measure at the harness
side.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 1 and ground.
•
Voltage should be between 4.5 and 4.9 volts.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 8.
NO : Repair it because of harness short circuit to ground
between A/T control solenoid valve assembly
connector B-40 terminal 1 and PCM connector C-61
<2.4L Engine> or C-63 <3.0L Engine> terminal 124.
ACX02479
CONNECTOR: B-40
AE
ACX02103
HARNESS
CONNECTOR: B-40
AD
ACX02479
CONNECTOR: B-40
AE
ACX02104
HARNESS
CONNECTOR: B-40
AC
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AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
23A-85
STEP 8. Check harness for damage between A/T control
solenoid valve assembly connector B-40 terminal 1 and
PCM connector C-54 <2.4L Engine> or C-55 <3.0L Engine>
terminal 124.
Q: Is the harness wire in good condition?
YES : Repair it because of harness damage between
solenoid valve assembly connector B-40 terminal 2
and PCM connector C-54 <2.4L Engine> or C-55
<3.0L Engine> terminal 57.
NO : Repair it.
ACX02479
CONNECTOR: B-40
AE
AC001657
CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>
PCM
AL
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AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
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DTC 21: Crankshaft Position Sensor System
AC004683AC
Crankshaft Position Sensor System Circuit
AC004306AB
BATTERY
CONNECTOR: A-21X
AC004926AB
CONNECTOR: B-20
<2.4L ENGINE>
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