Honda S2000 2000 L4 2.2L Workshop Manual

honda :: Honda S2000 L4-2.2L (2004)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations

Alarm Module: Locations

Immobilizer System - Component Location Index

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations > Page 7

S2000 L4-2.2L (2004)

58. Right Side of Steering Column

86. Under Driver's Seat

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations > Page 8

Alarm Module: Diagrams

99. Immobilizer Receiver Unit

140. Security Control Unit (Honda Accessory)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Component Locations

Keyless Entry Module: Component Locations

Relay And Engine Control Unit Locations - Dashboard

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Component Locations

> Page 13

S2000 L4-2.2L (2004)

62. Under Left Side of Dash

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Component Locations > Page 14

61. Under Left Side of Dash (Honda Accessory)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Page 15

134. Keyless Door Lock Control Unit

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Page 16

Keyless Entry Module: Testing and Inspection
Keyless Door Lock Control Unit Input Test

1. Disconnect the 18P connector from the keyless door lock control unit.2. Inspect the connector and socket terminals to be sure they are all making good contact.

- if the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.

- If the terminals look OK, go to step 3.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Page 17

S2000 L4-2.2L (2004)

3. Make these input tests at the connector.

- If any test indicates a problem, find and correct the cause, then recheck the system.

- If all the input tests prove OK, go to step 4.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Page 18

S2000 L4-2.2L (2004)

4. Reconnect the connector to the control unit, and perform the given input tests at the keyless door lock control unit connector.

- If any test indicates a problem, find and correct the cause then recheck the system.

- If all the input tests prove OK, the control unit must be faulty; replace it.

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Control Module > Component Information > Locations

Convertible Top Control Module: Locations

Relay And Engine Control Unit Locations - Dashboard And Door

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Control Module > Component Information > Locations > Page 23

S2000 L4-2.2L (2004)

Convertible Top - Component Location Index

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Control Module > Component Information > Locations > Page 24

S2000 L4-2.2L (2004)

Removable Hardtop - Component Location Index

78. Under Right Side of Dash

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Control Module > Component Information > Locations > Page 25

153. Convertible Top Control Unit

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Control Module > Component Information > Locations > Page 26

Convertible Top Control Module: Testing and Inspection
Convertible Top Control Unit Input Test

1. Remove the passenger's dashboard lower cover.

2. Disconnect the 14P connector (A) and 10P connector (B) from the convertible top control unit (C).3. Inspect the connector and socket terminals to be sure they are all making good contact.

- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.

- If the terminals look OK, go to step 4.

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Control Module > Component Information > Locations > Page 27

S2000 L4-2.2L (2004)

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Control Module > Component Information > Locations > Page 28

S2000 L4-2.2L (2004)

4. With the connectors still disconnected, make these input tests at the connectors.

- If any test indicates a problem, find and correct the cause, then recheck the system.

- If all the input tests prove OK, go to step 5.

5. Reconnect the connectors to the control unit, and make the input tests at the connectors.

- If any test indicates a problem, find and correct the cause, then recheck the system.

- If all the input tests prove OK, the control unit must be faulty; replace it.

> Relays and Modules > Relays and Modules - Body and Frame > Door Lock Relay > Component Information > Diagrams

107. Unlock Relay, Driver's Only (Honda Accessory)

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Component Locations

Keyless Entry Module: Component Locations

Relay And Engine Control Unit Locations - Dashboard

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Component Locations > Page 36

S2000 L4-2.2L (2004)

62. Under Left Side of Dash

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Component Locations > Page 37

61. Under Left Side of Dash (Honda Accessory)

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Page 38

134. Keyless Door Lock Control Unit

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Page 39

Keyless Entry Module: Testing and Inspection
Keyless Door Lock Control Unit Input Test

1. Disconnect the 18P connector from the keyless door lock control unit.2. Inspect the connector and socket terminals to be sure they are all making good contact.

- if the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.

- If the terminals look OK, go to step 3.

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Page 40

S2000 L4-2.2L (2004)

3. Make these input tests at the connector.

- If any test indicates a problem, find and correct the cause, then recheck the system.

- If all the input tests prove OK, go to step 4.

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Page 41

S2000 L4-2.2L (2004)

4. Reconnect the connector to the control unit, and perform the given input tests at the keyless door lock control unit connector.

- If any test indicates a problem, find and correct the cause then recheck the system.

- If all the input tests prove OK, the control unit must be faulty; replace it.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Control Module > Component Information > Locations

Keyless/Power Door Locks - Component Location Index

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Locations

86. Under Driver's Seat

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Locations > Page 48

(Honda Accessory)

> Relays and Modules > Relays and Modules - Body and Frame > Trunk / Liftgate Relay > Component Information > Locations

86. Under Driver's Seat

> Relays and Modules > Relays and Modules - Body and Frame > Trunk / Liftgate Relay > Component Information > Locations > Page 52

91. Trunk Lid Opener Relay (Honda Accessory)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Component Locations

27. Left Rear of Engine Compartment

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Component Locations > Page 58

Electronic Brake Control Module: Connector Locations

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Component

Locations > Page 59

S2000 L4-2.2L (2004)

ABS Control Unit Inputs and Outputs for 25P Connector

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Page 60

143. ABS Modulator-Control Unit

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Page 61

Electronic Brake Control Module: Description and Operation

ABS Control Unit

Main Control

The ABS control unit detects the wheel speed based on the wheel sensor signal it received, then it calculates the vehicle speed based on the detectedwheel speed. The control unit detects the vehicle speed during deceleration based on the rate of deceleration.The ABS control unit calculates the slip rate of each wheel, and transmits the control signal to the modulator unit solenoid valve when the slip rate ishigh.The pressure reduction control has three modes: pressure reducing, pressure retaining, and pressure intensifying.

Self-diagnosis Function

1. The ABS control unit is equipped with a main CPU and a sub-CPU. Each CPU checks the other for problems.2. The CPUs check the circuit of the system.3. The ABS control unit turns on the ABS indicator when the unit detects a problem, and the unit stops the system.4. The self-diagnosis can be classified into these two categories:
^ Initial diagnosis

^ Regular diagnosis

On-board Diagnosis Function

The ABS can be diagnosed with the HDS.The ALB Checker cannot be used with this system. For air bleeding and checking wheel sensor signals, use the HDS.See the HDS help menu for specific operating instructions.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Page 62

Electronic Brake Control Module: Testing and Inspection

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Page 63

S2000 L4-2.2L (2004)

ABS Control Unit Inputs and Outputs for 25P Connector

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Page 64

Electronic Brake Control Module: Service and Repair

ABS Modulator-Control Unit Removal and Installation

NOTE:

^

Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid gets on the paint, wash it off immediately with water.

^ Take care not to damage or deform the brake lines during removal and installation.
^ To prevent the brake fluid from flowing, plug and cover the hose ends and joints with a shop towel or equivalent material.

'O4 - 'O5 ModeIs: Removal

1. Pull up the lock (A) of the ABS control unit 25P connector (B), then disconnect the connector.2. Disconnect the six brake lines from the ABS modulator-control unit (C).3. Remove the three 6 mm, bolts:4. Remove the ABS modulator-control unit.

'O4 - 'O5 Models: Initallation

1. Install the ABS modulator-control unit, then tighten the three 6 mm bolts.2. Align the connecting surface of the ABS control unit 25P connector.3. Push in the lock of the ABS cOntrol unit 25P connector until you hear it click into place, then connect the connector.4. Bleed the brake system, starting with the front wheels.5. Start the engine, and check that the ABS indicator goes off.6. Test-drive the vehicle, and check that the ABS indicator does not come on.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Locations

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and Instructions

Radiator Cooling Fan Control Module: Diagram Information and Instructions

Terminal Numbering System
Terminal Numbering System

The cavities (and wire terminals) in each connector are numbered starting from the upper left, looking at the male terminals from the terminal side (orlooking at the female terminals from the wire side. Both views are in the same direction so the numbers are the same.) All actual cavities are numbered,even if they have no wire terminals in them.

NOTE:

Data Link Connector (DLC) terminals are numbered according to SAE standard J1962, not the Honda standard. The numbers of the four endterminals are molded into the corners of the connector face.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 71

S2000 L4-2.2L (2004)

The connector cavity number is listed next to each terminal on the circuit schematic. The cavity/terminal shown below is #6.

Wire Color Abbreviations

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 72

S2000 L4-2.2L (2004)

Wires

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 73

S2000 L4-2.2L (2004)

Connectors - "C"

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 74

S2000 L4-2.2L (2004)

Splices

Components

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 75

S2000 L4-2.2L (2004)

Ground - "G"

Terminals - "T"

Shielding

Switches

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 76

S2000 L4-2.2L (2004)

Fuses

Diodes

Light Emitting Diode (LED)

Motor

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 77

S2000 L4-2.2L (2004)

Pressure Sensor

Resistor

Variable Resistor

Solenoid

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 78

S2000 L4-2.2L (2004)

Transistors

Circuit Schematics

Circuit Schematics

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 79

S2000 L4-2.2L (2004)

Each schematic represents one circuit. A circuit's wires and components are arranged to show current flow from power at the top of the diagram toground at the bottom.

Shared Circuits

Other circuits may share power or ground terminals or wiring with the circuit shown. A wire that connects one circuit to another for example is cut shortand has an arrowhead at the end of it pointing in the direction of current flow. Next to the arrowhead is the name of the circuit or component whichshares that wiring. To quickly check shared wiring check the operation of a component it serves. If that component works you know the shared wiring isOK.

Connectors

All in-line and junction connectors are numbered (C725, C416 etc.). Component connectors are not numbered but are identified either by the name of thecomponent if the component only has one connector or by a capital letter (A, B, C etc.) if the component has more than one connector.

Below most connector numbers and component names are PHOTO and VIEW numbers. The PHOTO number refers to a photo at Shortcuts to PopularInformation/Locations that shows the connector's location on the car. The VIEW number refers to an connector view at Shortcuts to PopularInformation/Connector Views that shows the connector terminals wire colors connector cavity numbers and other details.

The connector cavity numbering sequence begins at the top left corner of the connector as seen from either of the viewpoints shown on diagram [8] .Except for the DLC (data link connector) disregard any numbers molded into the connector housing.

Wires

Wires are identified by the abbreviated names of their colors; the second color is the color of the stripe. Wires are also identified by their location in aconnector. The number "2" next to the male and female wire terminals at C554 for example means those terminals join in cavity 2 of connector C554.

Power Distribution Schematics

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Control Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 80

S2000 L4-2.2L (2004)

Power Distribution Schematics

Power Distribution schematics show how power is supplied from the positive battery terminal to various circuits in the car. Refer to the PowerDistribution diagram set to get a more detailed picture of how power is supplied to the circuit you're working on. Individual circuit schematics begin witha fuse. So if Power Distribution shows that an inoperative circuit and another circuit share a fuse, check a component in the other circuit. If it works, youknow the fuse is good and power is available to the inoperative circuit.

Ground Distribution Schematics