EC160B-03

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CLICK THE VOLVO-LOGO IN CLICK THE VOLVO-LOGO IN THE LOWER RIGHT CORNER THE LOWER RIGHT CORNER MAIN

MAIN

Explanation

Explanation of of Wiring Wiring Diagrams Diagrams EC160B-03-01EC160B-03-01 Electric Wire(1)

Electric Wire(1) EC160B-03-02EC160B-03-02 Electric Wire(2)

Electric Wire(2) EC160B-03-03EC160B-03-03 Electric

Electric Wire(3) Wire(3) EC160B-03-04EC160B-03-04

Connector

Connector General General EC160B-03-05EC160B-03-05

Connector

Connector Handling Handling EC160B-03-06EC160B-03-06

Connector

Connector View(1) View(1) EC160B-03-07EC160B-03-07

Connector

Connector View(2) View(2) EC160B-03-08EC160B-03-08

Resistance

Resistance Measurement(Measurement(1)1) EC160B-03-09EC160B-03-09 Resistance

Resistance Measurement(Measurement(2) 2) EC160B-03-10EC160B-03-10 DC

DC Voltage Voltage Measurement(1) Measurement(1) EC160B-03-11EC160B-03-11 DC

DC Voltage Voltage Measurement(2) Measurement(2) EC160B-03-12EC160B-03-12 DC

DC Current Current Measurement(1) Measurement(1) EC160B-03-13EC160B-03-13 DC

DC Current Current Measurement(2) Measurement(2) EC160B-03-14EC160B-03-14 Diode

Diode Check Check Procedure(1) Procedure(1) EC160B-03-15EC160B-03-15 Diode

Diode Check Check Procedure(2) Procedure(2) EC160B-03-16EC160B-03-16 Various

Various Connections Connections EC160B-03-17EC160B-03-17

Bad

Bad ConnectionConnections s EC160B-03-18EC160B-03-18

03

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Explanation of Wiring Diagrams

SCH00 1 3 9 4 2 8 LA301 LA302 LA303 LA304 SW3501 RE3501 IM04.1 IS02.7 48 48 48 2 6 3 1 IS02.6 IS02.1 _IS02.2 48 5 7 6 SCH12

1. Reference, cable has permanent connection to wiring diagram SCH12 2. Connector wih pin marking.(Connector IM04, pin 1)

3. Component (SW : switch, 3 : function group, 501 : running number) 4. Wire color(GN : green)

5. Wire number(not printed on the wire) 6. Voltage supply

7. Connection mark 8. Frame ground point 9. Diagram number

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Electric Wire(1)

Conductor (Copper wires) Base Color

Stripe Color

Y = Yellow Y/W = Yellow/White GN = Green GN/R = Green/Red BL = Blue BN/W = Brown/White GR = Gray BL/W = Blue/White W = White GN/W = Green/White BN = Brown BL/Y = Blue/Yellow OR = Orange BL/R = Blue/Red VO = Violet

P = Pink SB = Black

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Electric Wire(2)

GN/Y GN/Y B L / R B L / R BL/Y

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Electric Wire(3)

Low Resistance High Resistance

Low Resistance

High Resistance

P(power consumed at wire) = I2 R

Heat(generated at wire) Power(consumed at wire)

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Connector General

MA51.1 MA51.2

_{MA51. 2}

Connector Number Connector Pin Number Abb. Description

MA Main wire harness EN Engine wire hareness

RH Right hand side wire hareness LH Left hand side wire hareness IN Instrument wire hareness CA Cabin wire hareness SW Switch wire harenss EL Electric box wir harness

Abb. Description ME MA to EN connection MR MA to RH connection ML MA to LH connection MI MA to IN connection MC MA to CA connection MS MA to SW connection EM MA to EL connection MAE Main wire harness ground ENE Engine wire harness ground

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Connector Handling

Align Arrows and Push In Press Lock and

Pull out Remove Clamp

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Resistance Measurement(1)

1. Plug in multi-meter terminals to correct position.

2. Set multi-meter to the lowest resistance range.

3. Contact the terminals and set zero ohm point (if adjusting screw is installed).

4. Disconnect component from circuit. mA 20A V.Hz. COM OHM _Farad DC AC 20M 20A 20A 200 20 2000p 200n 20 o C 200 200 2 2 200m 20 20200m 200 200 2M 200K 20K 2K ₂₀₀ mA mA KHz TEMP V V

0

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Resistance Measurement(2)

5. Contact the terminals to measuring points.

Do not touch the terminals or measuring points with finger or any conductive material.

6. If resistance is too large to measure, increase measuring range step by step.

OHM _Farad DC AC 20M 20A 20A 200 20 2000p 200n 20 o C 200 200 2 2 200m 20 20200m 200 200 2M 200K 20K 2K ₂₀₀ mA mA KHz TEMP V V

1

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DC Voltage Measurement(1)

1. Plug in multi-meter terminals to correct position.

2. Set multi-meter to the highest DC voltage range.

3. Leave component at connected condition.

4. Check and match polarity of multi-meter terminal and component terminal. mA 20A V.Hz. COM OHM _Farad DC AC 20M 20A 20A 200 20 2000p 200n 20 o C 200 200 2 2 200m 20 20200m 200 200 2M 200K 20K 2K ₂₀₀ mA mA KHz TEMP V V

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DC Voltage Measurement(2)

6. If voltage is too small to measure, decrease measuring range step by step.

OHM _Farad DC AC 20M 20A 20A 200 20 2000p 200n 20 o C 200 200 2 2 200m 20 20200m 200 200 2M 200K 20K 2K ₂₀₀ mA mA KHz TEMP V V

0.001

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DC Current Measurement(1)

1. Plug in multi-meter terminals to correct position. (Plug in plus terminal to Max. current position)

2. Set multi-meter to same current range.

3. Disconnect one wire to the component.

4. Check and match polarity of multi-meter terminal and component terminal. mA 20A V.Hz. COM OHM _Farad DC AC 20M 20A 20A 200 20 2000p 200n 20 o C 200 200 2 2 200m 20 20200m 200 200 2M 200K 20K 2K ₂₀₀ mA mA KHz TEMP V V

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DC Current Measurement(2)

6. If current is too small to measure, decrease measuring range step by step.

0.01

OHM _Farad DC AC 20M 20A 20A 200 20 2000p 200n 20 o C 200 200 2 2 200m 20 20200m 200 200 2M 200K 20K 2K ₂₀₀ mA mA KHz TEMP V V mA 20A V.Hz. COM Current flow

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Diode Check Procedure(1)

1. Plug in multi-meter terminals to ohm measuring position.

2. Set multi-meter to 20K or similar ohm range.

3. Contact the terminals and check zero ohm point. (Check if multi-meter is normal)

4. Disconnect diode from circuit. mA 20A V.Hz. COM OHM _Farad DC AC 20M 20A 20A 200 20 2000p 200n 20 o C 200 200 2 2 200m 20 20200m 200 200 2M 200K 20K 2K ₂₀₀ mA mA KHz TEMP V V

0

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Diode Check Procedure(2)

5. Contact red terminal to triangle side pin and black terminal to bar side pin. Check if some kilo ohm value is displayed.

(This value can be different according to measuring condition )

6. Contact red terminal to bar side pin and black terminal to triangle side pin. Check if above measurable value is displayed.

5.6

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Various Connections

A B C D E 5A F G H 24V x y x y x y x y x y x y x y x y

Lamp Condition Remark Vx Vy A No Both line connected to power. 24 24 B Yes(bright) Normal condition 24 0 C No No ground connection 24 24 D Yes(dim) Bad ground connection 24 12 E No No ground connection 24 24 F Yes(dim) Bad power connection 12 0 G No No power connection 0 0 H No Fuse burn. 0 0

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Bad Connections

Loosen connector Broken pin

Cut wire

Loosen screw Rusted pin