Using the HDS (Preferred method)
- Go to B-CAN System Diagnosis Test Mode A to check for "Connected units" and DTCs (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A»(ref-291548-S06167950512008072900000) ).
- If no DTCs are retrieved, go to B-CAN System Diagnosis Test Mode C (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE C»(ref-291548-S35647769792008072900000) ) or D (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE D»(ref-291548-S20307005882008072900000) ).
- Check for communication circuit problems using B-CAN System Diagnosis Test Mode 1 (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS)»(ref-291548-S18387713542008072900000) ).
- Check for DTCs while in Mode 1 (see «GAUGE CONTROL MODULE DTC DISPLAY»(ref-291548-S14400292192008072900000) ). NOTE: If the problem is related to the display panel control unit or HandsFreeLink system, check for DTCs first with their own self-diagnostic function. HandsFreeLink control unit self-diagnostic function (see «SELF-DIAGNOSTIC FUNCTION»(ref-291581-S36629251202008072900000) ). Display panel control unit self-diagnostic function (see «RESETTING THE DISPLAY PANEL»(ref-291571-S07677416732008072900000) ).
- Sort, and then troubleshoot the DTCs in the order below. Battery voltage DTCs Internal error DTCs Loss of communication DTCs (beginning with the lowest number first; for example, if B1006 and B1059 are retrieved, troubleshoot B1006 first) Signal error DTCs
- If no DTCs are retrieved, use B-CAN System Diagnosis Test Mode 2 to check all inputs related to failure (see step 11 on «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS)»(ref-291548-S18387713542008072900000) ).
Body Controller Area Network (B-CAN) and Fast Controller Area Network (F-CAN)
The fast controller area network (F-CAN) and the body controller area network (B-CAN) share information between multiple electronic control units (ECUs). B-CAN communication moves at a slower speed for convenience related items and for other functions. F-CAN information moves at a faster speed for "real time" functions such as fuel and emissions data. To allow both systems to share information, the gauge control module translates information from the B-CAN to the F-CAN and from the F-CAN to the B-CAN.
The ECUs on the B-CAN and the F-CAN transmit and receive information in the form of structured messages that may be received by several different ECUs on the network at one time. These messages are transmitted and received across a communication circuit that consists of a single wire that is shared by all the ECUs on the circuit. Since messages on the F-CAN are typically of higher importance, a second wire is used for communication circuit integrity monitoring. A backup circuit is also added to the headlight and wiper circuits on the B-CAN in the event of a network wire or ECU failure that would effect the operation of the system.
Scheme 13
Messages are transmitted by an ECU (that monitors an input) over the communication circuit. ECUs that use the message (information related to that input) are the receivers. For example, the combination switch control unit monitors the wiper switch. When the wiper switch is placed in the low speed position, the combination switch control unit transmits that message on the communication circuit. The relay control module receives the message and turns on the wipers by providing a ground for the relay.
Scheme 14
Connected ECUs
Several ECUs are connected to each of the two networks. The gauge control module is part of both networks since it is the "gateway" between them. Here is a list of ECUs and the network they are connected to.
B-CAN ECUs
- Gauge control module
- Relay control module
- Multiplex integrated control unit (MICU)
- Door multiplex control unit
- Combination switch control unit
- Display panel control unit
- HandsFreeLink control unit
- Power seat control unit
- Automatic lighting control unit
- AcuraLink control unit (XM receiver)
F-CAN ECUs
Scheme 15
- Gauge control module
- ECM/PCM
- Navigation unit
- VSA modulator-control unit
- TPMS control unit
- AcuraLink control unit (XM receiver)
- SRS unit
Network "Loss of Communication" Error Checking
The B-CAN and the F-CAN send messages to each other to check the integrity of the network communication circuit. They do this by sending a specific digital message out after an event. For example, after turning the ignition switch to ON (II). After the switch to ON, all the ECUs on the communication circuit expect to receive a message from other specific units within a specified amount of time. If the message is not received, the ECU will transmit a DTC reporting that the control units did not communicate.
Scheme 16
- Ignition switch is turned ON (II).
- The door multiplex control unit transmits a door switch signal.
- The multiplex integrated control unit (MICU), relay control module, and gauge control module receive the door lock switch signal.
- The communication circuit test is passed. Since the door lock switch message was received by all the ECUs expecting to receive a signal, the communication circuit between those units is OK. There are multiple signal sent and received by each ECU during this time to insure that the communication circuit is intact. Failed circuit
- Ignition switch is turned ON (II).
- The door multiplex control unit transmits a door switch signal.
- The multiplex integrated control unit (MICU), relay control module, and gauge control module expect to receive the door lock switch signal, but since there is a break in the communication circuits, it is not received.
- Each ECU that expects to receive the door lock switch signal from the door multiplex control unit will transmit DTCs for the signal that it did not receive.
Since there is a break in the communication circuit, the door lock switch signal could not be received by the gauge control module, multiplex integrated control unit (MICU), or the relay control module. Each of these units will set "loss of communication" error codes for the signal(s) they did not receive. There may be multiple communication DTCs if the unit that has become disconnected from the network would normally transmit multiple messages during the communication line test. For example, the door multiplex control unit sends the keyless panic signal and door lock switch signal during the communication circuit test.
B-CAN System Switch Device Index
| Combination Switch Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Dimmer switch, Lighting switch, Passing switch, Turn signal switch, Wiper/washer switch, Intermittent dwell time controller | None |
COMBINATION SWITCH CONTROL UNIT REFERENCE
| Relay Control Module | |
|---|---|
| Input signal | Output signal/Device |
| Daytime running lights control, Hood switch, Horn switch, Windshield wiper motor. Windshield wiper failsafe, Rear window defogger | Daytime running lights control, Headlight, Parking light, Horn, Windshield washer motor, Windshield wiper motor |
RELAY CONTROL MODULE REFERENCE
| Door Multiplex Control Unit | |
|---|---|
| Input signal | Output signal |
| Driver's door key cylinder switch (lock/unlock), Driver's door lock knob switch (lock/unlock). Driver's door lock switch, Driver's power window switches (up, down, auto up, auto down). Passenger's power window switches (up, down), Driver's power window motor pulser. Key-off timer, Keyless receiver unit | Driver's power window motor, Passenger's power window switches, Power window relay control, Passenger's power window enable. Security, Moonroof control unit, Memory seat switches and indicators |
DOOR MULTIPLEX CONTROL UNIT REFERENCE
| Multiplex Integrated Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Brake pedal position switch, Door switches, Ignition key cylinder switch. Park pin switch (A/T), Passenger's door lock knob switches (unlock), Passenger's door lock switch, Seat belt buckle switch (unbuckled), Transmission range switch (P, R), Trunk lid latch switch | Door lock actuators, Hazard warning lights. Interior lights. Ignition key light, Key interlock solenoid. Turn signal lights, Moonroof control unit. Trunk lid opener solenoid. Door courtesy lights, Key-off timer, Keyless buzzer |
MULTIPLEX INTEGRATED CONTROL UNIT REFERENCE
| Display Panel Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| HandsFreeLink, Illumination positive. Illumination negative. Illumination (LED) | Clock, Audio-HVAC subdisplay-clock |
DISPLAY PANEL CONTROL UNIT REFERENCE
| Automatic Lighting Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Automatic lighting sensor | Headlight relays |
AUTOMATIC LIGHTING CONTROL UNIT REFERENCE
| Gauge Control Module | |
|---|---|
| Input signal | Output signal/Device |
| Dash lights brightness controller. Daytime running lights signal, Engine oil pressure switch signal, Washer fluid level switch signal, Parking brake switch, Brake fluid level switch. Fuel gauge sending unit, Select/Reset /Information switch, Cruise control combination switch (set, cancel, resume, master), VSA OFF switch, A/T park position, MET INH from ECM/PCM | Dash lights. Fuel gauge, Gauge lights. Indicator, LEDs, Speedometer, Tachometer, ECT gauge, Warning buzzer, Odometer/Outside air temperature display |
GAUGE CONTROL MODULE REFERENCE
| Climate Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Evaporator temperature sensor, In-car temperature sensor. Outside air temperature sensor, Sunlight sensor, Air mix motor position (Driver's and Passenger's), Mode motors position/Blower motor control feedback. Ground (Canada) | Air mix control motors (Driver's/Passenger's), Blower motor transistor, Mode control motors, Recirculation motor |
CLIMATE CONTROL UNIT REFERENCE
| Power Seat Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Back-up light switch signal. Driving position memory switch signal. Memory sensors, M/T ground | Driver's power seat motors |
POWER SEAT CONTROL UNIT REFERENCE
| Power Mirror Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Mirror switches, Mirror position sensors | Mirror actuator |
POWER MIRROR CONTROL UNIT REFERENCE
| HandsFreeLink Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Remote switches, Microphone input (without navigation), Microphone input (with navigation) via navigation unit, Bluetooth communication with cell phone | HandsFreeLink information |
HANDS FREE LINK CONTROL UNIT REFERENCE
| AcuraLink Control Unit | |
|---|---|
| Input signal | Output signal/Device |
| Microphone input, GPS antenna, Bluetooth communication with cellular phone | AcuraLink information |
ACURALINK CONTROL UNIT REFERENCE
HDS Inputs and Commands
| System Menu | Data List | Data List Indication |
|---|---|---|
| Wiper | Brake Pedal Position Switch | Brake pedal pushed: ON Brake Pedal released: OFF |
| Windshield Wiper Motor Park Switch | Wipers in park position: ON Wipers in other position: OFF | |
| Windshield Wiper Switch (BACK-UP) | Wiper switch in HI position: ON Wiper switch in other position: OFF | |
| Windshield Wiper Switch (LOW) | Wiper switch in LOW position: ON Wiper switch in other position: OFF | |
| Windshield Wiper Switch (HIGH) | Wiper switch in HI position: ON Wiper switch in other position: OFF | |
| Windshield Wiper Switch (MIST) | Wiper switch in MIST position: ON Wiper switch in other position: OFF | |
| Windshield Washer Switch | Washer switch on: ON Washer switch off: OFF | |
| Windshield Wiper Motor HI Command | Wiper high speed command on: ON Wiper high speed command off: OFF | |
| Windshield Wiper Motor Lo Command | Wiper low speed command on: ON Wiper high low command off: OFF | |
| Windshield Washer Motor Command | Washer command on: ON Washer command off: OFF | |
| Intermittent Wiper Dwell Timer | Switch at short setting: about 0.0 Switch at long setting: about 250 | |
| Power window | Driver's Door Switch | Door open: ON Door closed: OFF |
| Front Passenger's Door Switch | Door open: ON Door closed: OFF | |
| P/W Main Switch | On: ON Off: OFF | |
| P/W Master Switch (Driver's Power Window AUTO) | Auto position: ON Neutral position: OFF | |
| P/W Master Switch (Driver's Power Window UP) | Up position: ON Neutral position: OFF | |
| P/W Master Switch (Driver's Power Window DOWN) | Down position: ON Neutral position: OFF | |
| P/W Master Switch (Front Passenger's Power Window UP) | Up position: ON Neutral position: OFF | |
| P/W Master Switch (Front Passenger's Power Window DOWN) | Down position: ON Neutral position: OFF | |
| P/W Master Switch (Left Rear Power Window UP) | UP position: ON Neutral position: OFF | |
| P/W Master Switch (Left Rear Power Window DOWN) | Down position: ON Neutral position: OFF | |
| P/W Master Switch (Right Rear Power Window UP) | UP position: ON Neutral position: OFF | |
| P/W Master Switch (Right Rear Power Window DOWN) | Down position: ON Neutral position: OFF | |
| Driver's P/W Motor Pulse A | Window in motion: DETECT Window stopped: NONE | |
| Driver's P/W Motor Pulse B | Window in motion: DETECT Window stopped: NONE | |
| Driver's P/W Motor Command | OFF/UP/DOWN | |
| Front Passenger's P/W Motor Command | OFF/UP/DOWN | |
| Left Rear P/W Motor Command | OFF/UP/DOWN | |
| Right Rear P/W Motor Command | OFF/UP/DOWN | |
| P/W Relay Command | On command: ON Off command: OFF | |
| Moonroof Timer Command | Enabled: ON Disabled: OFF | |
| P/W Master Switch (Passenger's Power Window AUTO) | Auto position: ON Neutral position: OFF | |
| Power Window Passenger's Side, UP Switch | Up position: ON Neutral position: OFF | |
| Power Window Passenger's Side, DOWN Switch | Down position: ON Neutral position: OFF | |
| Power Window Passenger's Side, AUTO Switch | Down position: ON Neutral position: OFF | |
| Passenger's Power Window Motor Pulse A | Window in motion: DETECT Window stopped NONE | |
| Passenger's Power Window Motor Pulse B | Window in motion: DETECT Window stopped NONE | |
| Moonroof Command | OFF/CLOSE/OPEN | |
| Lighting | Driver's Door Switch | Door open: ON Door closed: OFF |
| Ignition Switch (IG1) | Ignition ON (II): ON Other positions: OFF | |
| Headlight Switch (OFF) | In off position: ON In other positions: OFF | |
| Headlight Switch (PARKING) | In park light position: ON In other positions: OFF | |
| Headlight Switch (HEADLIGHT) | In headlight position: ON In other position: OFF | |
| Headlight Switch (AUTO) | In headlight position: ON In other position: OFF | |
| Headlight Switch (BACK-UP) | In headlight position: ON In headlight position: OFF | |
| Headlight Switch (DIMMER) | In high-beam position: ON In low-beam position: OFF | |
| Headlight Switch (PASSING) | Passing switch on: ON Passing switch off: OFF | |
| Turn Signal Switch (LEFT) | In left position: ON Neutral position: OFF | |
| Turn Signal Switch (RIGHT) | In right position: ON Neutral position: OFF | |
| Fog Light Switch | Switch on: ON Switch off: OFF | |
| Ignition Key Cylinder Light Command | Light on command: ON Light off command: OFF | |
| Interior Light Command | Light on command: ON Light off command: OFF | |
| Left Turn Signal Command | Light on command: ON Light off command: OFF | |
| Right Turn Signal Command | Light on command: ON Light off command: OFF | |
| Headlight Command | Light on command: ON Light off command: OFF | |
| Headlight High Beam Command | Light on command: ON Light off command: OFF | |
| Parking Light Command | Light on command: ON Light off command: OFF | |
| Fog Light Command | Light on command: ON Light off command: OFF | |
| Rear Defroster Command | Defroster on command: ON Defroster off command: OFF | |
| DRL Command | DRL on command: ON DRL off command: OFF | |
| Auto right Small Command | Light on command: ON Light off command: OFF | |
| Auto right Headlight Command | Light on command: ON Light off command: OFF | |
| Gauge | Driver's Door Switch | Door open: ON Door closed: OFF |
| Front Passenger's Door Switch | Door open: ON Door closed: OFF | |
| Driver's Rear Door Switch | Door open: ON Door closed: OFF | |
| Passenger's Rear Door Switch | Door open: ON Door closed: OFF | |
| Trunk Lid/Tailgate Switch | Trunk open: ON Trunk closed: OFF | |
| Headlight Switch (OFF) | In off position: ON In other positions: OFF | |
| Headlight Switch (PARKING) | In park light position: ON In other positions: OFF | |
| Headlight Switch (HEADLIGHT) | In headlight position: ON In other positions: OFF | |
| Headlight Switch (DIMMER) | In high-beam position: ON In low-beam position: OFF | |
| Headlight Switch (PASSING) | Passing switch on: ON Passing switch off: OFF | |
| Turn Signal Switch (LEFT) | In left position: ON Neutral position: OFF | |
| Turn Signal Switch (RIGHT) | In right position: ON Neutral position: OFF | |
| Left Turn Signal Command | Light on command: ON Light off command: OFF | |
| Right Turn Signal Command | Light on command: ON Light off command: OFF | |
| Headlight Command | Light on command: ON Light off command: OFF | |
| Headlight High Beam Command | Light on command: ON Light off command: OFF | |
| Parking Light Command | Light on command: ON Light off command: OFF | |
| Brake Pedal Position Switch | Brake pedal pushed: ON Brake pedal released: OFF | |
| Fog Light Switch | Switch on: ON Switch off: OFF | |
| Cruise Control Main Switch | Switch on: ON Switch off: OFF | |
| Cruise Control Set Switch | Switch pushed: ON Switch released: OFF | |
| Cruise Control Resume Switch | Switch pushed: ON Switch released: OFF | |
| VSA/TCS Off Switch | Switch on: ON Switch off: OFF | |
| Illumination Volume Plus Switch | Switch pushed: ON Switch released: OFF | |
| Illumination Volume Minus Switch | Switch pushed: ON Switch released: OFF | |
| Illumination Volume Max Switch | Switch pushed: ON Switch released: OFF | |
| Select/Reset Switch | Switch pushed: ON Switch released: OFF | |
| INFO Previous Switch | Switch pushed: ON Switch released: OFF | |
| INFO Next Switch | Switch pushed: ON Switch released: OFF | |
| Ignition Key Cylinder Switch | Key in ignition: ON Key out of ignition: OFF | |
| Driver's Seat Belt Buckle Switch | Unbuckled: ON Buckled: OFF | |
| Cruise Control Main Switch Indicator (Operation Lamp) | Cruise set: ON Cruise not set: OFF | |
| Engine Oil Pressure Switch | Engine off (low pressure): ON Engine running: OFF | |
| Washer Fluid Level Switch | Fluid level low: ON Fluid level normal: OFF | |
| Gauge Select/Reset Switch | Reset button pushed: ON Reset button released: OFF | |
| Parking Brake Switch | Park brake lever pulled: ON Park brake lever released: OFF | |
| Brake Fluid Level Switch | Fluid level low: ON Fluid level normal: OFF | |
| Fuel Sending Unit Input 1 | Fuel tank empty: 4 V Fuel tank half full: 2.5 V Fuel tank full: 1 V | |
| Fuel Sending Unit Input 2 | Fuel tank empty: 5° Fuel tank half full: 50° Fuel tank full: 100° | |
| ABS Indicator | Indicator command on: ON Indicator command off: OFF | |
| EBD (Brake Light) Indicator | Indicator command on: ON Indicator command off: OFF | |
| MIL Indicator | Indicator command on: ON Indicator command off: OFF | |
| Washer Fluid Level Indicator (Canada) | Indicator command on: ON Indicator command off: OFF | |
| DRL Indicator | Indicator command on: ON Indicator command off: OFF | |
| Low Oil Pressure Indicator | Indicator command on: ON Indicator command off: OFF | |
| Charging System Indicator | Indicator command on: ON Indicator command off: OFF | |
| Cruise Master Switch ON Indicator | Indicator command on: ON Indicator command off: OFF | |
| Maintenance Required Indicator | Indicator command on: ON Indicator command off: OFF | |
| High Beam Indicator | Indicator command on: ON Indicator command off: OFF | |
| Parking Light ON Indicator | Indicator command on: ON Indicator command off: OFF | |
| Low Fuel Warning Indicator | Indicator command on: ON Indicator command off: OFF | |
| Fog Light Indicator | Indicator command on: ON Indicator command off: OFF | |
| Fuel Gauge Needle Command | Fuel tank empty: 4 V Fuel tank half full: 2.5 V Fuel tank full: 1 V | |
| VSA/TCS Active Indicator | Indicator command on: ON Indicator command off: OFF | |
| VSA/TCS Indicator (Warning) | Indicator command on: ON Indicator command off: OFF | |
| Low Tire Pressure Indicator | Indicator command on: ON Indicator command off: OFF | |
| TPMS Indicator | Indicator command on: ON Indicator command off: OFF | |
| Door lock | Driver's Door Switch | Door open: ON Door closed: OFF |
| Front Passenger's Door Switch | Door open: ON Door closed: OFF | |
| Driver's Rear Door Switch | Door open: ON Door closed: OFF | |
| Passenger's Rear Door Switch | Door open: ON Door closed: OFF | |
| Driver's Door Lock Switch (LOCK) | Switch pushed: ON Switch released: OFF | |
| Driver's Door Lock Switch (UNLOCK) | Switch pushed: ON Switch released: OFF | |
| Front Passenger's Door Lock Switch (LOCK) | Switch pushed: ON Switch released: OFF | |
| Front Passenger's Door Lock Switch (UNLOCK) | Switch pushed: ON Switch released: OFF | |
| Driver's Door Lock Knob Switch (LOCK) | Knob up: ON Knob down: OFF | |
| Driver's Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Front Passenger's Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Driver's Rear Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Passenger's Rear Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Driver's Door Key Cylinder Switch (LOCK) | Key turned to lock: ON Neutral position: OFF | |
| Driver's Door Key Cylinder Switch (UNLOCK) | Key turned to unlock: ON Neutral position: OFF | |
| Door LOCK Command | Lock command: ON Other: OFF | |
| Door UNLOCK Command | Unlock command: ON Other: OFF | |
| Driver's Door UNLOCK Command | Unlock command: ON Other: OFF | |
| Climate control | A/C Pressure Switch/Thermal Protector | A/C on: ON |
| Keyless | Driver's Door Switch | Door open: ON Door closed: OFF |
| Front Passenger's Door Switch | Door open: ON Door closed: OFF | |
| Driver's Rear Door Switch | Door open: ON Door closed: OFF | |
| Passenger's Rear Door Switch | Door open: ON Door closed: OFF | |
| Trunk Lid/Tailgate Switch | Trunk open: ON Trunk closed: OFF | |
| Driver's Door Lock Switch (LOCK) | Switch pushed: ON Switch released: OFF | |
| Driver's Door Lock Switch (UNLOCK) | Switch pushed: ON Switch released: OFF | |
| Front Passenger's Door Lock Switch (LOCK) | Switch pushed: ON Switch released: OFF | |
| Front Passenger's Door Lock Switch (UNLOCK) | Switch pushed: ON Switch released: OFF | |
| Driver's Door Lock Knob Switch (LOCK) | Knob up: ON Knob down: OFF | |
| Driver's Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Front Passenger's Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Driver's Rear Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Passenger's Rear Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Driver's Door Key Cylinder Switch (LOCK) | Key turned to lock: ON Neutral position: OFF | |
| Driver's Door Key Cylinder Switch (UNLOCK) | Key turned to lock: ON Neutral position: OFF | |
| Ignition Switch (IG1) | Ignition ON (II): ON Other positions: OFF | |
| Door LOCK Command | Lock command: ON Other: OFF | |
| Door UNLOCK Command | Unlock command: ON Other: OFF | |
| Driver's Door UNLOCK Command | Unlock command: ON Other: OFF | |
| Trunk Lid Release Command | Release command: ON Other: OFF | |
| Keyless Buzzer Command | Buzzer on command: ON Buzzer off command: OFF | |
| Security | Driver's Door Switch | Door open: ON Door closed: OFF |
| Front Passenger's Door Switch | Door open: ON Door closed: OFF | |
| Driver's Rear Door Switch | Door open: ON Door closed: OFF | |
| Passenger's Rear Door Switch | Door open: ON Door closed: OFF | |
| Trunk Lid/Tailgate Switch | Trunk open: ON Trunk closed: OFF | |
| Hood Switch | Hood open: ON Hood closed: OFF | |
| Driver's Door Lock Switch (LOCK) | Switch pushed: ON Switch released: OFF | |
| Driver's Door Lock Switch (UNLOCK) | Switch pushed: ON Switch released: OFF | |
| Front Passenger's Door Lock Switch (LOCK) | Switch pushed: ON Switch released: OFF | |
| Front Passenger's Door Lock Switch (UNLOCK) | Switch pushed: ON Switch released: OFF | |
| Driver's Door Lock Knob Switch (LOCK) | Knob up: ON Knob down: OFF | |
| Driver's Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Front Passenger's Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Driver's Rear Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Passenger's Rear Door Lock Knob Switch (UNLOCK) | Knob up: ON Knob down: OFF | |
| Driver's Door Key Cylinder Switch (LOCK) | Key turned to lock: ON Neutral position: OFF | |
| Driver's Door Key Cylinder Switch (UNLOCK) | Key turned to unlock: ON Neutral position: OFF | |
| Ignition Switch (IG1) | Ignition ON (II): ON Other position: OFF | |
| Horn Command | Horn on command: ON Horn off command: OFF | |
| Door LOCK Command | Lock command: ON Other: OFF | |
| Door UNLOCK Command | Unlock command: ON Other: OFF | |
| Driver's Door UNLOCK Command | Unlock command: ON Other: OFF | |
| Trunk Lid Release Command | Release command: ON Other: OFF | |
| Headlight Command | Light on command: ON Light off command: OFF | |
| Headlight High Beam Command | Light on command: ON Light off command: OFF | |
| Parking Light Command | Light on command: ON Light off command: OFF | |
| Security Indicator Command | Indicator on command: ON Indicator off command: OFF | |
| Display Panel Control Unit | OFF Switch | Switch on: ON Switch off: OFF |
| DUAL Switch | Switch on: ON Switch off: OFF | |
| Recirculate Switch | Switch on: ON Switch off: OFF | |
| A/C Compressor Switch | Switch on: ON Switch off: OFF | |
| Rear Defroster Switch | Switch on: ON Switch off: OFF | |
| Driver Temp Up Switch | Switch on: ON Switch off: OFF | |
| Driver Temp Down Switch | Switch on: ON Switch off: OFF | |
| Passenger Temp Up Switch | Switch on: ON Switch off: OFF | |
| Passenger Temp Down Switch | Switch on: ON Switch off: OFF | |
| Driver Temp AUTO Switch | Switch on: ON Switch off: OFF | |
| Passenger Temp AUTO Switch | Switch on: ON Switch off: OFF | |
| Driver MODE Switch | Switch on: ON Switch off: OFF | |
| Passenger MODE Switch | Switch on: ON Switch off: OFF | |
| Fan Speed Up Switch | Fan speed up switch pushed: ON Fan speed up switch release: OFF | |
| Fan Speed Down Switch | Fan speed down switch pushed: ON Fan speed down switch release: OFF | |
| Navi Map/Guide Switch | Switch on: ON Switch off: OFF | |
| Navi Menu Switch | Switch on: ON Switch off: OFF | |
| Navi Setup Switch | Switch on: ON Switch off: OFF | |
| Navi Info Switch | Switch on: ON Switch off: OFF | |
| Navi Zoom In Switch | Switch pushed: ON Switch release: OFF | |
| Navi Zoom Out Switch | Switch pushed: ON Switch release: OFF | |
| Navi Cancel Switch | Switch on: ON Switch off: OFF | |
| Navi Audio Switch | Switch on: ON Switch off: OFF | |
| Joystick-Enter | Joystick enter: ON Other position: OFF | |
| Joystick-Up | Joystick up: ON Other position: OFF | |
| Joystick-Up Right | Joystick up right: ON Other position: OFF | |
| Joystick-Right | Joystick right: ON Other position: OFF | |
| Joystick-Down Right | Joystick down right: ON Other position: OFF | |
| Joystick-Down | Joystick down: ON Other position: OFF | |
| Joystick-Down Left | Joystick down left: ON Other position: OFF | |
| Joystick-Left | Joystick left: ON Other position: OFF | |
| Joystick-Up Left | Joystick left up: ON Other position: OFF | |
| Rear Defogger Indicator | Indicator command on: ON Indicator command off: OFF | |
| DEF Indicator | Indicator command on: ON Indicator command off: OFF | |
| Recirculation Indicator | Indicator command on: ON Indicator command off: OFF | |
| DUAL Indicator | Indicator command on: ON Indicator command off: OFF | |
| Display Backlight (Navi) | Backlight command on: ON Backlight command off: OFF | |
| Front Panel Segment LCD (Non-Navi) | On command: ON Off command: OFF | |
| Subdisplay Segment LCD (Navi) | On command: ON Off command: OFF |
HDS INPUTS AND COMMANDS REFERENCE
Output
| System | Description | Data List |
|---|---|---|
| Gauge | Speedometer displays value inputted | Speedometer |
| Tachometer displays value inputted | Tachometer | |
| Fuel gauge displays value inputted | Fuel Level Gauge | |
| Temperature gauge displays value inputted | Engine Temperature Gauge | |
| Turns VSA activation indicator on/off | VSA/TCS Activation Indicator | |
| Turns VSA indicator on/off | VSA/TCS Indicator | |
| Turns ABS indicator on/off | ABS Indicator | |
| Turns EBD indicator on/off | EBD Indicator | |
| Turns cruise indicator on/off | Cruise Activation Indicator | |
| Turns MIL on/off | MIL Status | |
| Turns DRL indicator on/off | Daytime Running Light Indicator | |
| Turns low oil pressure indicator on/off | Engine Oil Pressure Indicator | |
| Turns charging system indicator on/off | Charging System Indicator | |
| Turns cruise main indicator on/off | Cruise Control Main Switch Indicator | |
| Turns high beam indicator on/off | High Beam Indicator | |
| Turns lights-on indicator on/off | Light On Indicator | |
| Turns low fuel indicator on/off | Low Fuel Indicator | |
| Turns fog light indicator on/off | Front Fog Light Indicator | |
| Displays inputted value | Trip Meter | |
| Turns A/T P position indicator on/off | A/T Gear Position Indicator (P) | |
| Turns A/T R position indicator on/off | A/T Gear Position Indicator (R) | |
| Turns A/T N position indicator on/off | A/T Gear Position Indicator (N) | |
| Turns A/T D position indicator on/off | A/T Gear Position Indicator (D) | |
| Turns A/T M position indicator on/off | A/T Gear Position Indicator (M) | |
| Turns A/T 1 position indicator on/off | A/T Gear Position Indicator (L) | |
| Turns S-mode segment on/off | Sequential Shift | |
| Controls gauge illumination brightness to inputted value | Illumination Brightness Control | |
| Turns key-in beeper on/off | Key Alarm Chime | |
| Turns lights-on beeper on/off | Headlight Alarm Chime | |
| Turns seat belt reminder beeper on/off | Seat belt Reminder Chime | |
| Rewriting the odo data, etc. | METER REPLACEMENT (ODO REWRITE etc.) | |
| Lighting | Turns ignition key light on/off | Ignition Key Cylinder Light Command |
| Turns interior lights on/off | Interior Light Command | |
| Turns left turn signal lights on/off | Left Turn Signal Command | |
| Turns right turn signal lights on/off | Right Turn Signal Command | |
| Turns headlights on/off | Headlight Command | |
| Turns headlights high beam on/off | Headlight High Beam Command | |
| Turns parking lights on/off | Parking Light Command | |
| Turns fog lights on/off | Front Fog Light | |
| Turns daytime running lights on/off | Daytime Running Light Signal | |
| Keyless | Turns trunk lid opener solenoid on/off | Trunk Lid/Tailgate Release Command |
| Turns keyless buzzer on/off | Keyless Buzzer | |
| Power window | Runs driver's window up | Driver's Window Up |
| Runs driver's window down | Driver's Window Down | |
| Runs front passenger's window up | Front Passenger's Window Up | |
| Runs front passenger's window down | Front Passenger's Window Down | |
| Runs left rear window up | Left Rear Window Up | |
| Runs left rear window down | Left Rear Window Down | |
| Runs right rear window up | Right Rear Window Up | |
| Runs right rear window down | Right Rear Window Down | |
| Turns power window relay on/off | Power Window Relay | |
| Runs moonroof open/close | Moonroof: Open/Close | |
| Reset power window master switch | Resetting the power window-Driver side | |
| Reset front passenger's window switch | Resetting the power window-Assistant side | |
| Wiper | Turns wiper low speed on/off | Windshield Wiper Motor Low Command |
| Turns wiper high speed on/off | Windshield Wiper Motor High Command | |
| Turns washer on/off | Windshield Washer Command | |
| Turns rear window defogger on/off | Rear Defogger | |
| Security | Turns horns on/off | Horn Command |
| Turns security indicator on/off | Security Indicator | |
| Display panel control unit | Turns TFT-LCD backlight on/off | Front Panel Display: TFT-LCD backlight (With Navi)- Turn on for 5 seconds. |
| Turns segment LCD on/off | Front Panel Display: Segment LCD (Without Navi)- Turn on for 5 seconds. | |
| Turns subdisplay segment LCD on/off | Front Panel Display: Subdisplay segment LCD-Turn on for 5 seconds. | |
| Power seat and power mirror | Turns driving position memory switch indicator 1 on/off | Power Seat: Memory Position 1 indicator |
| Turns driving position memory switch indicator 2 on/off | Power Seat: Memory Position 2 Indicator | |
| Runs slide motor forward | Power Seat: Slide Motor-Full Forward | |
| Runs slide motor backward | Power Seat: Slide Motor-Full Backward | |
| Runs front up-down motor up | Power Seat: Front UP-DOWN Motor-Full Up | |
| Runs front up-down motor down | Power Seat: Front UP-DOWN Motor-Full Down | |
| Runs rear up-down motor up | Power Seat: Rear UP-DOWN Motor-Full Up | |
| Runs rear up-down motor down | Power Seat: Rear UP-DOWN Motor-Full Down | |
| Runs recline motor forward | Power Seat: Recline Motor-Full Forward | |
| Runs recline motor backward | Power Seat: Recline Motor-Full Backward | |
| Turns memory buzzer on for 5 seconds | Power Seat: Memory Buzzer-5 seconds | |
| Runs left power mirror up | Power Mirror: Left Power Mirror-Full Up | |
| Runs left power mirror down | Power Mirror: Left Power Mirror-Full Down | |
| Runs left power mirror right | Power Mirror: Left Power Mirror-Full Right | |
| Runs left power mirror left | Power Mirror: Left Power Mirror-Full Left | |
| Runs right power mirror up | Power Mirror: Right Power Mirror-Full Up | |
| Runs right power mirror down | Power Mirror: Right Power Mirror-Full Down | |
| Runs right power mirror right | Power Mirror: Right Power Mirror-Full Right | |
| Runs right power mirror left | Power Mirror: Right Power Mirror-Full Left |
SYSTEM OUTPUT REFERENCE
Troubleshooting - B-CAN System Diagnosis Test Mode A
Check the ECM/PCM for DTCs and troubleshoot ECM/PCM or F-CAN loss of communication errors first (see GENERAL TROUBLESHOOTING INFORMATION ), then perform this diagnosis first if the symptom is related to the B-CAN system.
Note. Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting procedures in this section.
- Check the symptom against this list of B-CAN related systems: Gauge control module Exterior lights Turn signals Entry light control Interior lights Safety indicators Rear window defogger HandsFreeLink Horns (security and panic) Chimes (key, seat belt, lights-on and parking brake) Power windows Power window/moonroof timer Wiper/washer Security Keyless entry Power door locks Climate control Key interlock Dash light brightness Driving position memory Is the symptom related to the B-CAN system? YES -Go to step 2. NO -Go to the system troubleshooting for the system with the symptom.
- Connect the Honda Diagnostic System (HDS), then turn the ignition switch ON (II).
- From the BODY ELECTRICAL SYSTEM SELECTION MENU, select UNIT INFORMATION, and then select CONNECTED UNIT listed to see if it is communicating with the HDS. MICU Door multiplex control unit Gauge control module Combination switch control unit Relay control module Display panel control unit Power seat control unit HandsFreeLink control unit Automatic lighting control unit AcuraLink control unit (XM receiver) NOTE: If the unit is communicating with the scan tool or the HDS, DETECT will be displayed. If the unit is not communicating or the vehicle is not equipped, "Not Available" will be displayed. Are all control units communicating with the HDS? YES -Go to step 4. NO -If all units are not communicating, or if only the MICU is detected, go to «DTC B1000 TROUBLESHOOTING»(ref-291548-S08776438792008072900000) .
- Select the system that has the problem from the BODY ELECTRICAL SYSTEM SELECTION MENU, then select DTCs. Are any DTCs indicated? YES -Go to step 5. NO -If the problem is related to one of the following items, go to B-CAN System Diagnosis Test Mode C (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE C»(ref-291548-S35647769792008072900000) ). Exterior lights Turn signals Entry light control Interior lights Horns (security and panic) Power windows Wiper/washer Power door locks If the problem is related to one of the following items, go to the troubleshooting for that individual system. Gauge control module Safety indicators Chimes (key, seat belt and lights-on) Rear window defogger (climate control) Security Keyless entry Climate control Key interlock Dash light brightness Audio system Navigation Driving position memory HandsFreeLink
- Record all DTCs, and sort them by DTC type.
- Troubleshoot the DTC(s) in this order: Battery voltage DTCs. Internal error DTCs. Loss of communication DTCs. Begin troubleshooting with the lowest number first (Example: if DTCs B1006 and B1058 are retrieved, begin by troubleshooting B1006). Signal error DTCs.
Troubleshooting - B-CAN System Diagnosis Test Mode B
Perform this diagnosis if any of the control units are not communicating (Not Available is displayed in the HDS) as found by the B-CAN System Diagnosis Test Mode A.
- Using the HDS, select the system that has the symptom from the BODY ELECTRICAL SYSTEM SELECTION MENU.
- Select DTCs, and then check for loss of communication DTCs. Are any loss of communication DTCs indicated? YES -Go to step 3. NO -Replace the MICU.
- Perform the input test for the unit not communicating with the HDS. TROUBLESHOOTING CHART Unit not communicating MICU (see «MICU INPUT TEST»(ref-291548-S27796246812008072900000) ) Door multiplex control unit (see «DOOR MULTIPLEX CONTROL UNIT INPUT TEST»(ref-291548-S12158814332008072900000) ) Gauge control module (see «GAUGE CONTROL MODULE INPUT TEST»(ref-291548-S39004531452008072900000) ) Relay control module (see «RELAY CONTROL MODULE INPUT TEST»(ref-291548-S03332841842008072900000) ) Display panel control unit (see «DISPLAY PANEL CONTROL UNIT INPUT TEST»(ref-291571-S04887453402008072900000) ) Combination switch control unit (see «COMBINATION SWITCH CONTROL UNIT INPUT TEST»(ref-291548-S40370383382008072900000) ) Power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST»(ref-291583-S31063217282008072900000) ) HandsFreeLink control unit (see «CONTROL UNIT INPUT TEST/REPLACEMENT»(ref-291581-S33272716682008072900000) ) Automatic lighting control unit (see «AUTOMATIC LIGHTING CONTROL UNIT INPUT TEST»(ref-291531-S11784422602008072900000) ) AcuraLink control unit (XM receiver) (see «ACURALINK CONTROL UNIT (XM RECEIVER) CONNECTOR FOR INPUTS AND OUTPUTS (USA MODELS WITH NAVIGATION)»(ref-291551-S13509743152008072900000) )
Troubleshooting - B-CAN System Diagnosis Test Mode C
Perform this diagnosis if a component that is controlled by the B-CAN system does not stop or turn off.
Note. If the component does not turn ON, go to B-CAN System Diagnosis Test Mode D (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE D ). See the B-CAN system unit input/output index for a list of input and output devices and the control units that monitor the input and controls the output devices (see B-CAN SYSTEM SWITCH DEVICE INDEX ). Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting procedures in this section.
- Check for DTCs by selecting the TEST MODE MENU from the HDS. Are any DTCs indicated? YES -Go to B-CAN System Diagnosis Test Mode A (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A»(ref-291548-S06167950512008072900000) ). NO -Go to step 2.
- Turn OFF the switch that controls the malfunctioning component.
- Select DATA LIST from the TEST MODE MENU, and check the input of the switch that controls the component. Does the HDS indicate the switch is OFF? YES -Go to step 4. NO -Go to step 6 .
- In the DATA LIST, check the output signal of the malfunctioning component. Is the output signal OFF? YES -Go to step 5. NO -Replace the control unit that controls the device that will not turn OFF (see «B-CAN SYSTEM SWITCH DEVICE INDEX»(ref-291548-S36163197032008072900000) ).
- Check the relay if applicable, then check for a short in the wire between the relay and the component, relay and control unit or the component and control unit. Are the relay and the wire harness OK? YES -Replace the control unit that controls the component that will not turn OFF. NO -Replace the relay or repair the wire harness.
- Check the switch, then check for a short in the wire between the switch and the control unit that monitors the switch. Is the switch and wire harness OK? YES -Replace the control unit that monitors the switch. NO -Replace the switch or repair the wire harness.
Troubleshooting - B-CAN System Diagnosis Test Mode D
Perform this diagnosis a component that is controlled by the B-CAN system does not run or come on.
Note. If the component does not turn off or stop, go to B-CAN System Diagnosis Test Mode C (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE C ). See the B-CAN system unit input/output index for a list of input and output devices and the control units that monitor the input and controls the output devices (see B-CAN SYSTEM SWITCH DEVICE INDEX ). Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting procedures in this section.
- Check the fuse of the malfunctioning output device. Is the fuse OK? YES -Go to step 2. NO -Replace the fuse and recheck.
- Check for DTCs by selecting the TEST MODE MENU from the HDS. Are any DTCs indicated? YES -Go to B-CAN System Diagnosis Test Mode A (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A»(ref-291548-S06167950512008072900000) ). NO -Go to step 3.
- Turn ON the switch that controls the malfunctioning component.
- Select DATA LIST from the TEST MODE MENU, and check output signal for the malfunctioning component. Is there an output signal? YES -Go to step 5. NO -Go to step 9 .
- Check the relay and ground, then check for an open or a short in the circuit for the malfunctioning component. Are the relay and circuit OK? YES -Go to step 6. NO -Replace the relay or repair the wire circuit.
- Perform the function test for the malfunctioning component. Does the output device pass the function test? YES -Go to step 7. NO -Replace the component.
- With the malfunctioning output device connected, connect a voltmeter between the malfunctioning output device arid body ground on the wire that the control unit uses to control the output device circuit.
- Select MISC. TEST from the TEST MODE MENU, and do the forced operation test of the malfunctioning component. Is there a change in voltage (12 V to 0 V or 0 V to 12 V)? YES -Replace the component. NO -Replace the control unit that controls the malfunctioning component.
- Select DATA LIST from the TEST MODE MENU, and make sure the switch signal input for the malfunctioning system indicates a change when operated. Does the switch Input indicated ON when the switch is ON? YES -Replace the control unit that controls the malfunctioning component. NO -Go to step 10.
- Check the switch and its ground (if applicable), then check for an open or a short in the wire between the switch and the control unit that monitors it. Is the switch and the wire harness OK? YES -Replace the control unit that monitors the switch. NO -Replace the switch or repair the wire harness.
Troubleshooting - B-CAN System Diagnosis Test Mode 1 and Test Mode 2 (without the HDS)
Test Mode 1
Perform this diagnosis if the HDS is not available.
Scheme 17
- Check the No. 7 (7.5 A) fuse and No. 21 (7.5 A) fuse in the under-dash fuse/relay box. Are the fuses OK? YES -Go to step 2. NO -Find and repair the cause of the blown fuse.
- Remove the left kick panel (see «TRIM REMOVAL/INSTALLATION - DOOR AREAS»(ref-291545-S30774767402008072900000) ).
- Turn the ignition switch ON (II), and move the interior light switch in middle position.
- Connect the MPCS service connector (A) to the MICU service check connector (B) in the under-dash fuse/relay box.
- Wait 5 seconds, and watch the map lights. When the system enters Mode 1, the front and rear map lights will flash quickly once, and a double beep will be heard.
- If there is a DTC, the map lights and ignition key light will blink, pause, then repeat the DTC as long as the ignition switch ON (II). Is there a repeating DTC? YES -Count the blinks, then go to step 7. NO -Go to step 8 .
- About 1 second after you go into Test Mode 1, the map lights will indicate the DTC, and repeat it every 3 seconds. If there is more than one DTC, the system will indicate them in ascending order, beginning from the DTC with the lowest numerical value. Troubleshoot the DTCs as indicated below: DTC 2,3, 4 and 5 simultaneously: Check for an open in the BLU wire between multiplex integrated control unit D11 and relay control module K7, BRN/BLK wire between multiplex integrated control unit J4 and door multiplex control unit A5, LT GRN wire between multiplex integrated control unit X27 and combination switch control unit No. 4 and automatic lighting control unit No. 4, BRN/YEL wire between multiplex integrated control unit N28 and gauge control module B11. If the wire is OK, substitute a known-good under-dash fuse/relay box (multiplex integrated control unit), under-hood fuse/relay box, power window master switch, wiper/washer switch and gauge one at a time, in that order, and recheck for the DTCs after each substitution. DTC 1 only: Go to MICU input test (see «MICU INPUT TEST»(ref-291548-S27796246812008072900000) ). DTC 2 only (no other DTCs present): Go to the «RELAY CONTROL MODULE INPUT TEST»(ref-291548-S03332841842008072900000) . If all inputs are OK, substitute a known-good relay control module and then a MICU, one at a time, and then check for DTCs. If a DTC recurs after a substitution, replace that unit. DTC 3 only (no other DTCs present): Go to the «DOOR MULTIPLEX CONTROL UNIT INPUT TEST»(ref-291548-S12158814332008072900000) . If all inputs are OK, substitute a known-good door multiplex control unit and then a MICU, one at a time, and then check for DTCs. If a DTC recurs after a substitution, replace that unit. DTC 4 only (no other DTCs present): Go to the «COMBINATION SWITCH CONTROL UNIT INPUT TEST»(ref-291548-S40370383382008072900000) . If all inputs are OK, substitute a known-good wiper/ washer switch and then a MICU, one at a time, and then check for DTCs. If a DTC recurs after a substitution, replace that unit. DTC 5 only (no other DTCs present): Go to the «GAUGE CONTROL MODULE INPUT TEST»(ref-291548-S39004531452008072900000) . If all inputs are OK, substitute a known-good gauge control module and then a MICU, one at a time, and then check for DTCs. If a DTC recurs after a substitution, replace that unit. DTC TROUBLESHOOTING CHART DTC Cause 1 The MICU cannot receive signals from the BUS communication line. 2 The MICU cannot receive signals from the relay control module communication line. 3 The MICU cannot receive signals from the power window communication line. 4 The MICU cannot receive signals from the combination switch communication line. 5 The MICU cannot receive signals from the gauge control module.
- Check for B-CAN DTCs indicated by the gauge control module while still in Test Mode 1 (see «GAUGE CONTROL MODULE DTC DISPLAY»(ref-291548-S14400292192008072900000) ). Are any DTCs indicated? YES -Go to step 9. NO -Go to step 11 .
- Record all DTCs and sort them by type.
- Troubleshoot the DTCs in these order: Battery voltage DTCs Internal error DTCs Loss of communication DTCs (begin with the lowest number first; for example, if B1006 and B1059 are retrieved, troubleshoot B1006 first) Signal error DTCs Test Mode 2
- Remove the MPCS service connector from the under-dash fuse/relay box socket for 5-10 seconds, then re-insert it to enter Test Mode 2. When the system enters Test Mode 2, the front and rear map lights will flash two times quickly. NOTE: If the MPCS service connector is disconnected for too short or too long of a time, or the ignition switch is turned OFF, the system will return to Test Mode 1.
- In the table below is a list of circuits that can be checked in Test Mode 2. Operate the switch that is most closely related to the problem. If the circuit is OK, the map lights will blink once. If the circuit is faulty, there will be no indication. MICU MICU ITEM CHART Item Driver's door switch (OPEN) Front passenger's door switch (OPEN) Left rear door switch (OPEN) Right rear door switch (OPEN) Trunk lid latch switch (OPEN) Front passenger's door lock knob switch (UNLOCK) (1) Left rear door lock knob switch (UNLOCK) (1) Right rear door lock knob switch (UNLOCK) (1) Audio-HVAC display module security ground (disconnected) Driver's seat belt buckle switch (unbuckled) Brake pedal position switch (ON; brake pedal pressed) Passenger's door lock switch (LOCK/UNLOCK) (1) The front passenger's and rear door lock knob switches must be in the locked position when beginning the test. RELAY CONTROL MODULE RELAY CONTROL MODULE CHART Item Windshield wiper switch (AUTO STOP/PARK) Hood switch (open) A/C pressure switch/thermal protector (A/C ON) COMBINATION SWITCH CONTROL UNIT COMBINATION SWITCH CONTROL UNIT REFERENCE Item Turn signal switch (LEFT) Turn signal switch (RIGHT) Combination light switch (ON; each position) Dimmer switch (ON) Passing switch (ON) Windshield wiper switch (ON) Intermittent wiper dwell timer Windshield washer switch (ON) POWER WINDOW MASTER SWITCH (DOOR MULTIPLEX CONTROL UNIT) POWER WINDOW MASTER SWITCH REFERENCE Item Power window master switch (Driver's window UP) Power window master switch (Driver's window DOWN) Power window master switch (Driver's window AUTO UP) Power window master switch (Driver's window AUTO DOWN) Power window master switch (Front passenger's window UP) Power window master switch (Front passenger's window DOWN) Power window master switch (Left rear window UP) Power window master switch (Left rear window DOWN) Power window master switch (Right rear window UP) Power window master switch (Right rear window DOWN) Driver's door key cylinder switch (1) (LOCK) Driver's door key cylinder switch (1) (UNLOCK) Driver's door lock switch (LOCK) Driver's door lock switch (UNLOCK) Driver's door lock knob switch (LOCK) Driver's door lock knob switch (UNLOCK) Driver's position memory switches (1, 2, memo) Passenger's power window switch Passenger's power window switch (UP) Passenger's power window switch (DOWN) Passenger's power window switch (AUTO UP) Passenger's power window switch (AUTO DOWN) (1) A second key is necessary to check the key cylinder inputs. Be sure to rotate the key cylinder switch two times to each position (lock and lock, unlock and unlock) to ensure the door lock knob switch is in the appropriate position. GAUGE CONTROL MODULE GAUGE CONTROL MODULE REFERENCE Item Parking brake switch (ON; parking brake applied) Cruise control main SET/RESUME/CANCEL switch (ON; switch pressed) Transmission range switch (P, R, N, D) Washer fluid level switch (fluid removed) (Canada) Brake fluid level switch (fluid removed) Illumination control switches (+, -, MAX) MID switches (Select/Reset, < INFO, INFO >) POWER SEAT CONTROL UNIT POWER SEAT CONTROL UNIT REFERENCE Item Power seat slide switch (Forward, Backward) Power seat front up-down switch (UP, Down) Power seat rear up-down switch (UP, Down) Power seat recline switch (Forward, Recline) POWER MIRROR CONTROL UNIT POWER MIRROR CONTROL UNIT REFERENCE Item Mirror select switch (Left, Center, Right) Mirror switch (Left, Right, Up, Down) Does the map lights indicate proper switch operation? YES -Go to function and input test for the system related to the failure. NO -Repair the open, short, or replace the faulty switch.