Page 1265 of 3189

2 CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect park/neutral position (PNP) switch harness connector.
SEF393Y
3. Check harness continuity between PNP switch terminal 4 and body ground.Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to power.
OK or NG
OK GO TO 3.
NG Repair open circuit or short to power in harness or connectors.
3 CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 418 and PNP switch terminal 2. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK GO TO 4.
NG Repair open circuit or short to ground or short to power in harness or connectors.
4 CHECK PARK/NEUTRAL POSITION (PNP) SWITCH
Refer to MT-21, “Position Switch Check”.
OK or NG
OK GO TO 5.
NG Replace park/neutral position (PNP) switch.
5 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
INSPECTION END
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PARK/NEUTRAL POSITION (PNP) SWITCH (WHERE FITTED)YD
Diagnostic Procedure (Cont’d)
EC-211
Page 1266 of 3189
Wiring DiagramNJEC0786
YEC331A
AIR CONDITIONER CONTROLYD
Wiring Diagram
EC-212
Page 1267 of 3189
Wiring DiagramNJEC0787
YEC332A
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MI & DATA LINK CONNECTORSYD
Wiring Diagram
EC-213
Page 1268 of 3189
General SpecificationsNJEC0788Unit: rpm
Engine YD22DDT
Idle speed 725±25
Maximum engine speed 4,900
Injection NozzleNJEC0790Unit: kPa (bar, kg/cm2, psi)
Initial injection pressureNew 21,476 - 22,457 (214.7 - 224.5, 219 - 229, 3,114 - 3,256)
Limit 18,275 (182.7, 186, 2,650)
Engine Coolant Temperature SensorNJEC0791
Temperature °C (°F) Resistance kΩ
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Crankshaft Position Sensor (TDC)NJEC0792
Resistance [at 20°C (68°F)]Ω495 - 605
Glow PlugNJEC0793
Resistance [at 25°C (77°F)]Ω0.8
Accelerator Position SensorNJEC0794
Throttle valve conditions Resistance between terminals 2 and 4 kΩ[at 25°C (77°F)]
Completely closed0.9 - 1.3
Partially open0.9 - 2.1
Completely open1.7 - 2.1
EGR Volume Control ValveNJEC0795
Resistance [at 25°C (77°F)]Ω13 - 17
SERVICE DATA AND SPECIFICATIONS (SDS)YD
General Specifications
EC-214
Page 1269 of 3189

ACCELERATOR CONTROL, FUEL &
EXHAUST SYSTEMS
SECTION
FE
CONTENTS
QG
PREPARATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[2
Special Service Tools ..................................................2
Commercial Service Tools ...........................................2
ACCELERATOR CONTROL SYSTEM...........................3
Removal and Installation .............................................3
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[..3
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011> 3
INSPECTION AFTER INSTALLATION.........................3
FUEL SYSTEM<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[.4
Checking Fuel Lines ....................................................4
Removal and Installation .............................................4
Fuel Tank <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[..............5
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[..5
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011> 7
Fuel Pump, Fuel Level Sensor Unit and Fuel
Filter <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011[....................8
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[..8
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011> 9
EXHAUST SYSTEM<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011> 0
Checking Exhaust System.........................................10
Removal and Installation ...........................................10
YD
PREPARATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011001100110011> 3Special Service Tool ..................................................13
Commercial Service Tool ...........................................13
ACCELERATOR CONTROL SYSTEM.........................14
Removal and Installation ...........................................14
Inspection<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[..............14
FUEL SYSTEM<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011001100110011> 15
Checking Fuel Lines ..................................................15
Water Draining from Fuel Filter .................................15
DRAINING WATER..................................................15
FUEL FILTER CHECK..............................................15
Changing Fuel Filter ..................................................15
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[15
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 5
Bleeding Fuel Filter....................................................16
Checking Priming Pump ............................................16
Removal and Installation ...........................................16
Fuel Tank <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[............17
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[19
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 2
Fuel Level Sensor Unit ..............................................23
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[24
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 5
EXHAUST SYSTEM<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011> 6
Checking Exhaust System.........................................26
Removal and Installation ...........................................26
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Page 1270 of 3189
Special Service ToolsNJFE0029
Tool number
Tool nameDescription
KV10114400
Heated oxygen sensor
wrench
NT636
Loosening or tightening front and rear
heated oxygen sensors
a: 22 mm (0.87 in)
KV999G0010
Fuel tank lock ring
socket
NT057
Removing and installing fuel tank lock
ring
Commercial Service ToolsNJFE0030
Tool number
Tool nameDescription
Oxygen sensor thread
cleaner
AEM488
Reconditioning the exhaust system threads
before installing a new oxygen sensor (Use
with anti-seize lubricant shown below.)
a: 18 mm dia. with pitch 1.5 mm for zir-
conia oxygen sensor
b: 12 mm dia. with pitch 1.25 mm for
titania oxygen sensor
Anti-seize lubricant
(Permatex 133AR or
equivalent meeting MIL
specification MIL-A-
907)
AEM489
Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
PREPARATIONQG
Special Service Tools
FE-2
Page 1271 of 3189

Removal and InstallationNJFE0033
PBIC0742E
1. Accelerator pedal assembly (work
unit)
REMOVALNJFE0033S011. Remove harness connector.
2. Loosen nuts, and remove accelerator pedal assembly.
CAUTION:
Do not disassemble the accelerator pedal assembly. Do
not remove the sensors and the switches from the assem-
bly.
Avoid impact from dropping etc. during handling.
Be careful to keep the assembly away from water.
When the harness connector of the accelerator sensor is
disconnected, perform “Accelerator Pedal Released Posi-
tion Learning”. Refer to “Basic Service Procedure” in EC
section.
INSTALLATIONNJFE0033S02Install in the reverse order of removal.
INSPECTION AFTER INSTALLATIONNJFE0033S03Check that the accelerator pedal moves smoothly within the
whole operation range.
Check that the accelerator pedal securely returns to the origi-
nal position.
For the electrical inspection of the accelerator pedal assembly,
refer to EC-211, “DTC P0226 APP SENSOR” (QG engine mod-
els WITH EURO-OBD), EC-536, “DTC P0226 APP SENSOR”
(QG engine models WITHOUT EURO-OBD).
Check that the drum of the accelerator work unit can be fully
opened.
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ACCELERATOR CONTROL SYSTEMQG
Removal and Installation
FE-3
Page 1272 of 3189

SMA803A
Checking Fuel LinesNJFE0009Inspect fuel lines and tank for improper attachment, leaks, cracks,
damage, loose connections, chafing or deterioration.
If necessary, repair or replace faulty parts.
MMA104A
CAUTION:
Tighten high-pressure rubber hose clamp so that clamp end is
3 mm (0.12 in) from hose end.
Tightening torque specifications are the same for all rubber
hose clamps.
Ensure that screw does not contact adjacent parts.
Removal and InstallationNJFE0004WARNING:
When replacing fuel line parts, be sure to observe the following.
Put a “CAUTION: FLAMMABLE” sign in workshop.
Be sure to furnish workshop with a CO
2fire extinguisher.
Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.
CAUTION:
Before removing fuel line parts, carry out the following procedures:
a) Put drained fuel in an explosion-proof container and put the lid on securely.
b) Release fuel pressure from fuel line. Refer to EC-34, “Fuel Pressure Release”.
c) Disconnect battery ground cable.
Always replace O-ring and clamps with new ones.
Do not kink or twist tubes when they are being installed.
Do not tighten hose clamps excessively to avoid damaging hoses.
After installing tubes, run engine and check for fuel leaks at connections.
FUEL SYSTEMQG
Checking Fuel Lines
FE-4