
6A-6 POWER STEERING SYSTEM
OIL PUMP PRESSURE CHECK Oil Pump Pressure Check
1. Disconnect the pressure hose from the oil pump connect apressure gauge between the oil pump and pressure hose
2. Bleed the system . Start the engine and turn the steering wheel form lock several times until oil temperature is up to
50°C
3. Run the engine at 1,000 rpm.
4. Close the pressure gauge valve and check oil pressure.
NoticeDo not keep the valve closed for more than 10 seconds.
5. Remove the pressure gauge and connect the pressure hose.
6. Do bleeding procedure. BLEEDING OF POWER STEERING SYSTEM Bleeding of Power Steering System
1. Disconnect the fuel line. Using a starter motor, crank the engine and turn the steering wheel from lock to lock 5 or 6 times. Notice Do bleeding with engine cranking. If bleed with idling, there can be a air contact with oil.
2. Connect the fuel feed line and start the engine at idle speed.
3. Turn the steering wheel from lock to lock until there is no more air in oil reservoir.
4. Connect the oil level is within specification.
5. By turning the steering wheel left to right, check the oil level change. Notice
If oil is not changes more than 5mm, do bleeding again.
If oil level rises suddenly when stopped engine, again.
Relief Pressure
75 - 82 kg/cm2

9A-6 BODY WIRING SYSTEM Engine Room Fuse (EF) and Relay Box1 Fuse (15A) : ABS, ABD
2 Fuse (20A) : Sun Roof
3 Fuse (10A) : Air Bag
4 Fuse (15A) : Audio, Clock, Out Side Mirror
5 Fuse (30A) : Cigarette lighter, Power Socket
6 Fuse (30A) : Heater
7 Fuse (15A) : Door Lock
8 Fuse (30A) : Rear Heated
9 Fuse (10A) : Audio, Buzzer, Chime, Clock
10 Fuse (30A) : Power Window
11 Fuse (10A) : Immobilizer
12 Fuse (20A) : T/C
13 Fuse (15A) : Interior Lamp
14 Fuse (15A) : Hazard Lamp
15 Fuse (15A) : Stop Lamp
16 Fuse (15A) : Turn signal Lamp, Head Lamp
17 Fuse (10A) : Back up Lamp
18 Fuse (15A) : Cluster, STICS
19 Fuse (15A) : A/T, Diagnosis
20 Fuse (15A) : Over Voltage Protection Relay (Gasolin Only)
21 Fuse (15A) : Seat Heater
22 Fuse (15A) : ECS
23 Fuse (15A) : Front Wiper & Washer
24 Fuse (10A) : Rear Wiper & Washer, A/C
25 Relay : Front Wiper 26 Relay : ABS Warning Lamp
27 Relay : Flasher Unit
28 Relay : Fuel Pump (Gasoline Only)
29 Relay : Shift Lock (A/T)
30 Relay : Clutch Interlock & Neutral
31 Relay : Sun Roof
32 Relay : A/T ‘B’ Interlock (MB A/T)
33 Relay : Power Window
34 Relay : Rear Fog Lamp
35 Relay : ECS
36 Relay : Compressor (Diesel E/G)
Condenser Fan (Gasoline E/G)
37 Relay : Condenser Fan
38 Relay : Air Conditioner
39 Fuse (10A) : Tail Lamp
40 Fuse (15A) : Head Lamp(LH)
41 Fuse (15A) : Head Lamp(RH)
42 Fuse (15A) : Front Fog Lamp
43 Fuse (10A) : Horn
44 Fuse (10A) : Compressor
45 Relay : Resistor with Diode (Gasoline E/G)
46 Relay : Front fog Lamp
47 Relay : Condenser Fan
48 Relay : Tail Lamp
49 Relay : Horn

9A-8 BODY WIRING SYSTEM1 Fuse Box
2 Door Lock Relay
3 Relay Box
3.1 Front Wiper Relay
3.2 ABS Warning Lamp Relay ....................................ABD 5.0
3.3 Flasher Unit
3.4 Fuel Pump Relay ................................................. Gasoline E/G
3.5 Shift Lock Relay ................................................... Automatic Transmission
3.6 Clutch Interlock & Neutral Relay ...........................Manual Transmission or Automatic Transmission
3.7 Sun Roof Relay
3.8 Automatic T ransmission ‘B’ Switch Interlock ....... Automatic Transmission
3.9 Power Window Relay
3.10 Rear Fog Lamp Relay .......................................... Rear Fog Lamp
3.11 ECS Relay 4 Defogger Relay
5 Ground 1
6 Roof Wiring Connector
7 Diode 1
8 Front Door Wiring Connector
9 Front Door Wiring Connector
10 Front Door Wiring Connector 11 Front Door Wiring Connector
12 Kick Down Relay .................................................. Automatic Transmission
13 Floor Wiring Connector
14 Floor Wiring Connector
15 Floor Wiring Connector
16 ABD Floor Wiring Connector ................................ABD 5.0
17 ECS Floor Wiring Connector
18 Rear Iper & Washer Switch
19 Clutch Switch ........................................................ Manual Transmission
19-1 Clutch Switch ........................................................ E32 Gasoline E/G with Manual Transmission
20 Stop Lamp Switch
21 Outside Mirror Switch
22 Ignition Switch
23 Multi Function Switch
24 Multi Function Switch
25 Black Out Switch .................................................. Black Out Lamp
26 Black out switch ................................................... Black Out Lamp
27 Joint Connector (Tail)
28 Joint Connector (Ignition)
29 Cluster
30 Cluster ................................................................. Automatic Transmission
31 Cluster
32 Cluster
33 4WD Switch .......................................................... Except TOD
33-1 4WD Switch .......................................................... TOD
3 4 Hazard Switch
35 Ground 2
36 Pedal Module ....................................................... Gasoline E/G with MSE ECU
37 Audio Switch
3 8 Immobilizer ........................................................... Crypto Type, Gasoline E/G with MSE ECU or Diesel E/G
39 Ignition Switch
40 Multi Function Switch
4 1 STICS
4 2 STICS
4 3 REKES ................................................................. Remote Keyless

MUSSO-SPORTS 1A-7
SUPPLEMENT
Throttle Position Sensor (TPS)
1. EGR unit receives TPS signal from TCU (A/T) or input
signal from pin 61 of EGR unit (M/T). The load value of engine is important signal because Huber EGRsystem make EGR valve operate in extended rangeexcept no-load sharp acceleration mode.
2. Resistance check
Disconnect the TPS sensor connector from fuelinjection pump and measure the entire resistancebetween pin 1 and pin 4. Specified value: 5 k ± 20 %
Measure the resistance between pin 1 and pin 2 at no-load and full-load. Approx. 10 ~ 20 % of full resistance at no-load Approx. 70 ~ 85 % of full resistance at full-load
3. Voltage check
The supplied voltage to TPS from EGR unit (for
M/T) or TCU (for A/T) is approx. 5 V. 0.60 ± 0.2 V at no-load 3.85 ± 0.3 V at full-load
VACUUM LINE Installation of modulator and vacuum line (on-vehicle)
E GR n

1A-10 MUSSO-SPORTS
SUPPLEMENT
Test Step 2: Exhaust gas control mode with no-load sharp acceleration (between vacuum pump and ALDA)
Condition:
1. At idling, monitor the changesof boost pressure while changing the accelerator pedalposition slowly.
2. Remove the inlet port from ALDA on fuel injection pump,then install the pressure tester.
Before checking the generation of vacuum pressure, Check whether the boost
pressure from intake manifold can be applied to ALDA or not in the range beyond no-load sharp acceleration mode. Check whether the boost pressure can be generated between intake manifold and ALDA. Boost pressure at idling: approx. 5 ~ 7 mbar. While depressing the accelerator pedal slowly, does the boost pressure of 220 ~ 270 mbar generate at 4,000 ~ 4,500 rpm?
At idling, install the pressure tester into inlet port of vacuum modulator2 and read the negative pressure(specified value: approx. -900mbar) on tester. Install the vacuum tester into inlet port of solenoid valve, and checkwhether the negative pressure isgenerated in no-load sharp accel-eration mode or not, and read thechanges of vacuum pressurewithin specified ranges.
NO
If the boost pressure is not within specified value, appropriatepressure line should be replaced. Check the solenoid valve with the same method in no-load sharpacceleration mode.
YES
YES
Check the vacuum circuit in no-load sharp acceleration mode. Is the approx. -900 mbar of negative pressure generated between vacuum pump line and inlet port of vacuum modulator 2?
In vacuum modulator 2, check the vacuum circuit between inlet port and outlet port. Is the approx. -300 ~ 650 mbar of negative pressure generated in no-load sharp acceleration mode?
Check the vacuum circuit between outlet port of vacuum modulator 2 and inlet port of solenoid valve. Is the approx. -300 ~ 650 mbar of negative pressure generated in no-load sharp acceleration mode?
Install the vacuum tester into outlet port of vacuum modulator, andcheck whether the negativepressure is generated or not in no-load sharp acceleration mode.
Check the intake boost pressure by ranges
Boost pressure line
between intake manifold and solenoid valve
Boost pressure line
between ALDA and solenoid outlet valve
NO
Check the voltage supplying and vacuuming
Check whether the EGR control unit can supply the battery voltage tovacuum modulator 2. If can, in no-load sharp acceleration mode,check whether the negative pressuremay vary within specified ranges. Ifthere are not any vacuuming or if thenegative pressure will not be varied,replace the modulator with new one. YES
YES
NO
Replace the vacuum hose in the range.

USAGE AND CAPACITY OF FUSES IN FUSE BOX 4-3
2. I/P FUSE BLOCK
1) POSITION OF RELAY AND FUSE 2) USAGE OF FUSE IN PASSENGER ROOM FUSE BOX
* 30 : BAT(+) Power Supply Through Ef1.
15A10A
10A15A10A
20A10A10A
10AST F110AIG1 F210AIG1 F3
ACC10AF4 B+30AF5
B+
(1) F6
F13
IG1
F20
15AF730AF1410AF21
F8F15F22
20AF915AF1610AF23
F10
B+
(2)
F17
F24
20AF1115AF1810A 15A
20AF1210AIG2 F19
30A
F25 F26
F27
85
87a3087
86
85
-3087
86
BE
L
85-
30
87
86
2) RELAY BOX
FRONT WIPERRELAY DEFOGGER
RELAY TURN SIGNAL
RELAY GSL : FUEL PUMP RELAYDSL : CIGAR LIGHTER, P/SOCKET RELAY A/T SHIFT LOCK
RELAY
8730
8685
8730
8685
8730
8685
8730
8685
A/T:PNP RELAY M/T:CLUTCH INTER LOCK RELAY SUNROOF
RELAY 'B' S/W
INTERLOCK RELAY POWER WINDER
RELAY 10A 10A10A10A30A15A15A10A20A20A20A20A30A15A15A10A 15A 10A10A10A10A10A10A10A15A30A
F1F2F3F4F5F6F7F8F9
F10 F11F12F14F15F16F17 F18 F19F20F21F22F23F24F25F26F27
Fuse No Capacity Usage
Starter Motor Relay Air BagABS/ABDOutside Mirror, AudioCigar Lighter, Power SocketStop LampHazard SwitchInteriorFuel Pump (Only GSL)TCCU/TOD, Power seatOVPR 1 (Only GSL)OVPR 4 (Only GSL)Heated GlassSun RoofRear Fog Lamp, Power ANT., ECSDLCFront Wiper & WasherRear Wiper & WasherTCCU/TCMBack Up Lamp, Turn Signal LampHead Lamp, Cluster OVPR 3 (Only GSL) Speed Sensor, Unit, Relay CoilNot UsedNot UsedNot Used
Power Supply
30 BAT(+)
ACC (15C) IGN2 (15A)
30 BAT (+)
IGN1 (15)
IGN1 (15)
SPARE
8730
8685
8730
8685
ECS
RELAY ABS WARNING
LAMP RELAY
8730
8685

4-4 USAGE AND CAPACITY OF FUSES IN FUSE BOXSDM Chime BellImmobilizer UnitSticsRekesEBCM
4 Pin 4 Pin 4 Pin4 Pin4 Pin4 Pin4 Pin 4 Pin 3 Pin3 Pin
82330-05000 84190-05100 84150-0130084150-0130084150-0130084150-0130084150-01300 84150-01300 84130-0500084130-05000
Part Name Part Number
Remarks
Resistor W/Diode (GSL) A/C Compressor Relaly (DSL)A/C RelayCooling Fan - 1 RelayCooling Fan - 2 RelayFront Fog Lamp Relay Head Lamp Relay (Low) Head Lamp Relay (Hi)Illumination RelayHorn Relay
3. POSITION OF RELAY, CONTROL UNIT AND PARTS NUMBER
1) ENGINE ROOM FUSE BLOCK
2) RELAY BOX ABOVE I.P FUSE BLOCK
5 Pin 5 Pin 3 Pin5 Pin5 Pin4 Pin4 Pin 4 Pin 4 Pin 4 Pin 4 Pin 4 Pin
84210-05001 84210-05001 84410-05100
66182253386618225338
84150-0130084150-01300 84150-01300 84150-01300 84150-0130084150-0130084190-05100
Part Name Part Number Remarks
Front Wiper Relay Defogger RelayTurn Signal Lamp RelayFuel Pump Relay (GSL)Cigar Lighter, P/socket Relay (DSL)A/T Shift lock Relay PNP Relay Sun Roof RelayA/T "B" Switch Interlock Relay Power Window Relay ECL RelayABS Warning Lamp Relay
3) CONTROL UNIT
Below The Audio
Beside The SDM
Behind the Wiper Switch Upper The Accelerator Upper The Stics
I/P Center Console Floor Panel
8690005800 8661005000869500580087110058008716105000
4891005000X
Part Name Part Number Remarks

CONTENTS
1. STARTING & CHARGING CIRCUIT ........................................................................................... 5-8
1) GSL E23 MB A/T ............................................................................................................... ...................................... 5-8
2) GSL BTRE A/T, GSL E32 MB A/T ................................................................................................. ........................5-10
3) DSL NA BTRE A/T, M/T ......................................................................................................... .................................5-12
4) DSL LA BTRE A/T, M/T ......................................................................................................... .................................5-14
2. PREHEAT'G UNIT CIRCUIT ...................................................................................................... 5-16
3. EGR CONTROL CIRCUIT.......................................................................................................... 5-18
4. ECM (E23, MSE) ............................................................................................................... .......... 5-20
1) OVPR, FUEL PUMP, CCP SOLENOID CIRCUIT ........................................................................................ ....... 5-20
(1) W/O EURO III ............................................................................................................... ..................................................................... 5-20
(2) W/ EURO III ................................................................................................................ ....................................................................... 5-22
2) IGNITION COIL, SENSOR (CAM SHAFT, MAP, CKP), CAM SHAFT ACTUATOR, CPS CIRCUIT .............. 5-24 (1) W/O EURO III ............................................................................................................... ..................................................................... 5-24
(2) W/ EURO III ................................................................................................................ ....................................................................... 5-26
SECTION 5
ELECTRICAL WIRING DIAGRAMS