NOTE: Do not replace the engine control module (ECM) <M/T> or powertrain control module (PCM) <A/T>
until a through terminal check reveals there are no short/open circuits.

NOTE: Check that the ECM <M/T> or PCM <A/T> ground circuit is normal before checking for the cause of
the problem.

NOTE: After the ECM <M/T> or PCM <A/T> detects a malfunction, a diagnostic trouble code is recorded the
next time the engine is started and the same malfunction is re-detected. However, for items marked with a "*,"
the diagnostic trouble code is recorded on the first detection of the malfunction.

P0506

Idle control system rpm lower than expected

P.13B-359

P0507

Idle control system rpm higher than expected

P.13B-368

P0551

Power steering pressure sensor circuit range/performance

P.13B-376

P0705

Transmission range sensor
circuit malfunction (PRNDL
input)

•

A/T DTC No.27 (Park/Neutral position switch
system: Open circuit)

•

A/T DTC No.28 (Park/Neutral position switch
system: Short circuit)

P.13B-382

P0710

Transmission fluid
temperature sensor circuit
malfunction

•

A/T DTC No.15 (Oil temperature sensor
system: Open circuit)

•

A/T DTC No.16 (Oil temperature sensor
system: Short circuit)

P.13B-383

P0715

Input/turbine speed sensor
circuit malfunction

•

A/T DTC No.22 (Input shaft speed sensor
system)

P.13B-384

P0720

Output speed sensor circuit
malfunction

•

A/T DTC No.23 (Output shaft speed sensor
system)

P.13B-385

P0725

Engine speed input circuit
malfunction

•

A/T DTC No.21 (Crankshaft position sensor
system)

P.13B-386

P0740

Torque converter clutch
system malfunction

•

A/T DTC No.36 (Torque converter clutch
solenoid system: Short circuit/Open circuit)

•

A/T DTC No.52 (Torque converter clutch
solenoid system: Faulty system)

•

A/T DTC No.53 (Torque converter clutch
solenoid system: Lock-up stuck on)

P.13B-387

P0750

Shift solenoid A malfunction

•

A/T DTC No.31 (Low and reverse solenoid
valve system)

P.13B-388

P0755

Shift solenoid B malfunction

•

A/T DTC No.32 (Underdrive solenoid valve
system)

P.13B-389

P0760

Shift solenoid C malfunction

•

A/T DTC No.33 (Second solenoid valve
system)

P.13B-390

P0765

Shift solenoid D malfunction

•

A/T DTC No.34 (Overdrive solenoid valve
system)

P.13B-391

P1400

Manifold differential pressure sensor circuit malfunction

P.13B-393

P1500

Generator FR terminal circuit malfunction

P.13B-399

P1603

Battery backup circuit malfunction

P.13B-405

P1610

Immobilizer malfunction

P.13B-408

P1751

A/T control relay malfunction

•

A/T DTC No.54 (A/T control relay system)

P.13B-409

DTC
CODE

DIAGNOSTIC ITEMS

REFERENCE
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-21

NOTE: Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates the
sensor mounted at the position second closest to the engine.

SYMPTOM CHART

M1131008800072

NOTE: Check that the PCM ground circuit is normal before checking for the cause of the problem.

TROUBLE SYMPTOMS

INSPECTION
PROCEDURE

REFERENCE
PAGE

Communication
with scan tool is
impossible

Communication with all systems is not possible

P.13B-411

Communication with PCM only is not possible

P.13B-413

Service engine
soon/malfunction
indicator lamp
and related parts

The service engine soon/malfunction indicator lamp does
not illuminate right after the ignition switch is turned to the
"ON" position

P.13B-416

The service engine soon/malfunction indicator lamp
remains illuminated and never goes out

P.13B-421

Starting

Cranks, won't start

P.13B-423

Starts up and dies

P.13B-429

Hard starting

P.13B-434

Idling stability
(improper idling)

Unstable idle (rough idle, hunting)

P.13B-440

Idle speed is high (improper idle speed)

P.13B-445

Idle speed is low (improper idle speed)

P.13B-446

Idling stability
(engine stalls)

When the engine is cold, it stalls at idle (die out)

P.13B-447

When the engine is hot, it stalls at idle (die out)

P.13B-450

The engine stalls when accelerating (pass out)

P.13B-454

The engine stalls when decelerating

P.13B-455

Driving

Hesitation, sag or stumble

Acceleration shock

Deceleration shock

Poor acceleration

Surge

Knocking

Dieseling (Run-on)

Too high CO and HC concentration when idling

P.13B-469

IM240 test failure Transient, mass emission tailpipe test failure

P.13B-471

Purge flow test of the evaporative emission canister failure 24

P.13B-476

Pressure test of the evaporative system failure

P.13B-477

Generator output voltage is low (approximately 12.3 V)

P.13B-478

Improper idle speed when the A/C is operating (A/C switch 2 signal)

P.13B-482

Fans (Radiator fan, A/C condenser fan) are inoperative

P.13B-484

Power supply system and ignition switch-IG system

P.13B-487

Fuel pump system

P.13B-494

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-22

PROBLEM SYMPTOMS Table (FOR YOUR INFORMATION)

Ignition switch

−

ST system <M/T>

P.13B-501

Ignition switch-ST system and park/neutral position switch system <A/T>

P.13B-506

Ignition circuit system

P.13B-510

A/C system

P.13B-515

TROUBLE SYMPTOMS

INSPECTION
PROCEDURE

REFERENCE
PAGE

ITEMS

SYMPTOM

Starting

Won't start

The starter is used to crank the engine, but there is no combustion
within the cylinders, and the engine won't start.

Fires up and dies The engine starts, but then the engine soon stalls.

Hard starting

Engine starts after cranking a while.

Idling stability

Hunting

Engine speed doesn't remain constant; changes at idle.

Rough idle

Usually, a judgement can be based upon the movement of the
tachometer pointer, and the vibration transmitted to the steering wheel,
shift lever, body, etc.

Incorrect idle
speed

The engine doesn't idle at the usual correct speed.

Engine stall (die
out)

The engine stalls when the foot is taken from the accelerator pedal,
regardless of whether the vehicle is moving or not.

Engine stall
(pass out)

The engine stalls when the accelerator pedal is depressed or while it is
being used.

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