Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 488

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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STEP 14. Check harness for short circuit to ground, open
circuit or damage between A/T control relay connector A-
19X terminal 3 and PCM connector C-57 <2.4L Engine> or
C-59 <3.0L Engine> terminals 77 and 89.
Q: Is the harness wire in good condition?

YES : Go to Step 15.
NO : Repair it.

STEP 15. Check harness for damage between A/T control
relay connector A-19X terminal 1 and battery.
Q: Is the harness wire in good condition?

YES : Go to Step 16.
NO : Repair it.

STEP 16. Check harness for damage between A/T control
relay connector A-19X terminal 2 and the ground.
Q: Is the harness wire in good condition?

YES : Go to Step 17.
NO : Repair it.

AC004306 AC

BATTERY

CONNECTOR: A-19X

AC001657

CONNECTOR: C-57 <2.4L ENGINE> OR
C-59 <3.0L ENGINE>

AK

PCM

AC004306 AC

BATTERY

CONNECTOR: A-19X

AC004306 AC

BATTERY

CONNECTOR: A-19X

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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STEP 17. Check harness for short circuit to ground
between A/T control relay connector A-19X terminal 4 and
PCM connector C-54 <2.4L Engine> or C-55 <3.0L Engine>
terminal 50.
Q: Is the harness wire in good condition?

YES : Repair it because of harness short circuit to ground

between A/T control relay connector A-19X terminal 3
and solenoid valve assembly connector B-40 terminal
9.

NO : Repair it.

AC004306 AC

BATTERY

CONNECTOR: A-19X

AC001657

CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>

PCM

AL

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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DTC 56: ''N'' Range Light System <Vehicles with sport mode>

AC004693

''N'' Range Light System Circuit

AC

AC001844

CONNECTOR: B-41

DIPSTICK

AB

AC001741

CONNECTOR: C-27

AK

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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CIRCUIT OPERATION
If a fail-safe is triggered while driving forward, the
PCM flashes the "N" range light once per second
(triggered fail-safe). The PCM does this by switching
battery positive voltage to terminal 121.

DTC SET CONDITIONS
If the PCM detects a fail-safe condition, it will attempt
to illuminate the "N" range light. The PCM sends a 12
volts pulse for 60

−

180 ms. If it does not detect a

voltage drop during the pulse, it waits about 60
seconds and pulses 12 volts again for 60

−

180 ms. If

the PCM does no detect the voltage drop before the
ignition switch is turned "LOCK" (OFF), the PCM will
consider it as an short circuit of the "N" range light
circuit and output code number "56."

TROUBLESHOOTING HINTS (The most likely

causes for this code to be set:)

•

Defective "N" range light bulb

•

Damaged harness, connector

•

Malfunction of the PCM

DIAGNOSIS

Required Special Tool:
MB991502: Scan Tool (MUT-II)

AC001729 AO

CONNECTOR: C-43

AC001657

CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>

PCM

AN

AC001691

CONNECTORS: C-101, C-107

C-101

JUNCTION BLOCK
(FRONT VIEW)

C-107

AN