ESP ACURA CSX 2006 Service Service Manual






Handling Wires and Harnesses
22-4 Body Electrical
General Troubleshooting Information (cont’d)
A
BA
(P/N 08798-9001) DOWN A
AB
 Check for loose retainers (A) and rubber seals (B).
 The backs of some connectors are packed with dielectric grease. Add grease if necessary. If the
grease is contaminated, replace it.
 Insert the connector all the way and make sure it is securely locked.
 Position wires so that the open end of the cover faces down.  Secure wires and wire harnesses to the frame with
their respective wire ties at the designated locations.
 Remove clips carefully; don’t damage their locks (A).
 After installing harness clips, make sure the harness doesn’t interfere with any moving parts.
 Keep wire harnesses away from exhaust components and other hot parts, from sharp edges of brackets and
holes, and from exposed screws and bolts.
 Seat grommets in their grooves properly (A). Do not leave grommets distorted (B).
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Power Supply Voltage Monitoring Function
Entry Lights Control System
Lighting System (Headlights, Parking Lights, Fog Lights, Side Marker Lights, License Plate
Lights, and Taillights)
Daytime Running Lights
Turn Signal/Hazard Warning Lights
Door Lock Response Operation
Power Window Key-off Operation
InputOutput
Input Output
Input Output
Input Output
Input Output
Input Output
Input Output
22-85
The MICU monitors the power supply voltage (back-up voltage). If the voltage goes below 10 V, the MICU sends a MICU message and will not
store DTCs.
MICU Battery voltage MICU : MICU internal circuit
The MICU controls the ceiling light ON/OFF and dimming based upon input signals from each switch. MICU IG1 power supply Ignition key switch
Driver’s door switch
Front passenger’s door switch
Left rear door switch
Right rear door switch
Driver’s door lock knob switch (LOCK) Interior light
B-CAN Keyless LOCK signal
The MICU contains the relay circuits for the headlight high/low beams and taillights, and controls the lighting system ON/OFF based upon input
signals from the combination light switch. MICU Headlight OFF switch Headlight ON switch
Fog light switch
Dimmer switch
Combination light switch (parking lights, side marker lights,
license plate lights, and taillights)
Passing switch Headlights (low beam)
Headlights (high beam)
Parking lights
Fog lights
Side marker lights
License plate lights
Taillights
The MICU controls the exterior lights as a daytime running lights based upon input signals from each switch. MICU Headlight OFF switch Headlight ON switch
Dimmer switch
Combination light switch (parking lights, side marker lights,
license plate lights, and taillights)
Passing switch Headlights (low beam)
Headlights (high beam)
Parking lights
Slide marker lights
License plate lights
Taillights
B-CAN Transmission range switch (P position)
The MICU controls the turn signal/hazard warning lights based upon input signals from the turn signal and hazard warning switches. MICU IG1 power supply Turn signal switch (left/right)
Hazard warning switch Turn signal lights (left/right)
The MICU controls the door lock actuators based upon B-CAN signals. B-CAN Door lock signals Door lock actuator (LOCK/UNLOCK) Driver’s door lock actuator (UNLOCK)
Trunk lid release actuator
The MICU controls the power windows key-off operation based upon input signals from each switch. MICU IG1 power supply Ignition key switch
Driver’s door switch
Front passenger’s door switch Power window key-off timer
(cont’d)
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Security Alarm System
Key-in Reminder
Key Interlock (A/T)
Answer Back Response Operation
Wiper/Washer
Collision Detection Signal (CDS)
InputOutput
Input Output
Input Output
Input Output
Input Output
Input Output
22-87
The MICU controls the lighting system and horn based upon B-CAN signals and input signals from the each switch.
MICU IG1 power supply Ignition key switch
Audio switch
Driver’s door switch
Front passenger’s door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver’s door key cylinder switch (UNLOCK)
Driver’s door lock knob switch (UNLOCK)
Front passenger’s door lock knob switch (UNLOCK)
Left rear door lock knob switch (UNLOCK)
Right rear door lock knob switch (UNLOCK)
Hood switch Horn
Headlights
Parking lights
Side marker lights
License plate lights
Taillights
B-CAN Keyless LOCK signal Door lock signal
The MICU controls the door lock actuators based upon ignition key switch, the driver’s door switch, and driver’s door lock knob switch signals. MICU Ignition key switch Driver’s door switch
Driver’s door lock knob switch Door lock actuator (LOCK/UNLOCK)
Driver’s door lock actuator (UNLOCK)
The MICU controls the key interlock solenoid based upon IG1, transmission range switch, and park-pin switch signals. MICU Ignition switch ACC Transmission range switch (P position)
Park-pin switch Key interlock solenoid
The MICU controls the lighting system and horn based upon B-CAN signals. B-CAN Answer back signals (headlight low, horn, parking lights) Horn Headlights
Parking lights
Side marker lights
License plate lights
Taillights
The MICU controls the wiper motor and the washer motor based upon IG1 and wiper/washer switch signals. MICU IG1 power supply Wiperswitch(INTandLO)
Wiper switch (LO and HI)
Wiper switch (MIST)
Washer switch
Wiper intermittent speed Wiper motor
Washer motor
The MICU controls the door lock actuators based upon IG1 and B-CAN signals. MICU IG1 power supply Door lock (LOCK/UNLOCK)
B-CAN SRS signal (front, side and rear) Impact sensors
(cont’d)
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With HDS
22-142 Keyless/Power Door Locks/Security System
Transmitter Test/Replacement
A
NOTE:
 If the doors unlock or lock with the transmitter, but the LED on the transmitter does not come on, the LED
is faulty; replace the transmitter.
 If any door is open, you cannot lock the doors with the transmitter.
 If you unlocked the doors with the transmitter, but do not open any of the doors within 30 seconds, the
doors relock automatically.
 The doors do not lock or unlock with the transmitter if the ignition key is inserted in the ignition switch.
1. Press the lock or unlock button five or six times to reset the transmitter.
 If the locks work, the transmitter is OK.
 If any of the transmitter buttons do not work, replace the transmitter, then do the transmitter
programming registration (see page 22-329).
 If the locks don’t work, go to step 2.
2. Connect the HDS to the data link connector.
3. Select the KEYLESS from the BODY ELECTRICAL menu, then enter the KEYLESS CHECK.
4. Press lock, unlock, trunk, or panic button and check the response on the screen of the HDS.
NOTE: The door lock actuators may or may not
cycle when receiving input from the transmitter.
 If KEYLESS ENTRY TRANSMITTER CODE IS RECEIVED is indicated, the transmitter is OK. Go
to keyless operation troubleshooting (see page
22-127).
 If DIFFERENT KEYLESS ENTRY TRANSMITTER CODE IS RECEIVED is indicated, the transmitter is
not registered to the vehicle, if necessary,
reprogram and register the transmitter (see page
22-329).
 If KEYLESS ENTRY TRANSMITTER CODE IS NOT RECEIVED is indicated, go to step 5. 5. Open the transmitter and check for water damage.
 If you find any water damage, replace thetransmitter, then reprogram and register the
transmitter (see page 22-329).
 If there is no water damage, go to step 6.
6. Replace the transmitter battery (A) with a new one, and press lock or unlock button and check the
receive condition on the screen of the HDS.
 If KEYLESS ENTRY TRANSMITTER CODE IS RECEIVED is indicated, the transmitter is OK.
 If KEYLESS ENTRY TRANSMITTER CODE IS NOT RECEIVED is indicated, go to step 7.
08/08/21 14:26:07 61SNR030_220_0144
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µ
µ
µ
µ
µ
µ µ
µ
µ
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YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
22-225
WINDSHIELD WIPER MOTOR 5P CONNECTOR
AS (WHT) UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
LOW (BLU) HIGH (YEL)
WINDSHIELD WIPER MOTOR 5P CONNECTOR GND (BLK)
10. Turn the ignition switch to ON (II).
11. Measure the voltage between windshield wipermotor 5P connector terminal No. 5 and body
ground.
Repair a short to power in the WHT wire.
Faulty MICU; replace the under-dash fuse/
relay box.
12. Turn the ignition switch to LOCK (0).
13. Check the No. 38 (30 A) fuse in the under-dash fuse/ relay box.
Go to step 14.
Replace the fuse and recheck the system.
14. Do the wiper motor test (see page 22-231).
Go to step 15.
Replace the windshield wiper motor
(see page 22-233) and recheck.
15. Reconnect the windshield wiper motor 5P connector. 16. Measure the voltage between under-dash fuse/
relay box connector F (34P) terminals No. 18 (LOW)
and No. 19 (HIGH) and body ground with the wiper
switch in corresponding position.
Go to step 17.
Faulty MICU; replace the under-dash fuse/
relay box (see page 22-66).
17. Measure the voltage between windshield wiper motor 5P connector terminal No. 2 and body
ground.
Repair an open in the BLU (LOW) or YEL
(HIGH) wire.
Repair an open in the BLK wire or poor
ground (G 201).
Wire side of female terminals Wire side of female terminals
Wire side of female terminals
Is there voltage? IsthefuseOK?Does t he w i per mot or r un nor mal l y ? Is there battery voltage?
Is t her e l ess t han 0.5 V ?
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22-239
COOLANT TEMPERATURE GAUGESPEEDOMETER
FUEL GAUGE
TACHOMETER ODO/TRIP/OUTSIDE AIR
TEMPERATURE DISPLAY A/T GEAR POSITION INDICATOR
(cont’d)
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µ
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DTC B1173:
YES
NO
YES
NO YES
NO
YES
NO
22-266Gauges
DTC Troubleshooting (cont’d)
GAUGE CONTROL MODULE (TACH) 36P CONNECTOR
CAN H (WHT)
CAN L (RED)
TPMS CONTROL UNIT 20P CONNECTOR
Gauge Control Module Lost
Communication with the TPMS Control Unit
(TPMS Message) (’08-09 models)
NOTE: If you are troubleshooting multiple DTCs, be
sure to follow the instructions in B-CAN System
Diagnosis Test Mode A (see page 22-93).
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Check for the DTCs with the HDS.
Go to step 4.
Intermittent failure, the F-CAN
communication line is OK at this time. Check for
loose or poor connections. If the connections are
good, check the battery condition (see page 22-67),
and the charging system.
4. Check for DTCs in the TPMS.
Troubleshoot the TPMS DTCs with the
HDS.
Go to step 5.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the gauge control module (tach) 36P connector.
7. Disconnect the TPMS control unit 20P connector. 8. Check for continuity between gauge control
module (tach) 36P connector terminals No. 1 and
No. 19 and TPMS control unit 20P connector
terminals No. 2 and No. 11 respectively.
Go to step 9.
Repair an open in the wire between the gauge
control module and the TPMS control unit.
9. Check for poor connections, power, and ground to the TPMS control unit. If OK, substitute a known-
good TPMS control unit.
10. Check for DTCs with the HDS.
Replace the gauge control module (tach)
(see page 22-277).
Replace the original TPMS control unit.
Wire side of female terminals
Wire side of female terminals
I s DT C B117 3 i nd i cat ed ?
Are any DTCs indicated? Is there continuity?
I s DT C B117 3 i nd i cat ed ?
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How to Identify Navigation DVD Versions,
and How to Inspect A DVD for Damage
23-96Navigation System
General Troubleshooting Information (cont’d)
To determine the navigation version on a particular
model, start the engine, then locate the navigation unit.
Open the DVD door, and push the eject button to eject
the DVD. Hold the DVD by the edges, and check for
these items:
 The DVD label color.
 Read the DVD version on the label, and note it on the repair order. The version number is near the bottom
of the label text (for example, ver: 4.23A). You will
need this version number:
– To verify that the DVD version is appropriate for the vehicle. Check any official Honda service website
for more service information.
– Any time you call Tech Line regarding a navigation system issue.
– To answer client inquires concerning update or coverage issue.
NOTE: Clients may obtain DVDs from sources
outside the normal ordering process. If you
determine this is the case, recommend that your
client purchase the appropriate DVD from the
Honda Disc Fulf illment Center (see ORDERING A
DVD).
– Check the underside of the DVD for signs of mishandling. Deep scratches, or random scratches,
light swirl marks, or fingerprints can cause random
lock-ups, reboots, erratic voice response, erratic
positioning errors, and DVD read or format errors.
NOTE: A damaged DVD is not covered under
warranty unless the disc is damaged by the
navigation unit. Damage by the navigation unit
typically appears as circular scratches caused by
something rubbing against the DVD as it spins. The
damage may appear as arcs or complete circles on
the DVD reading surface.
– Verify that the underside of the DVD is silver, and not a copy with a blue color. Copies will not work
properly and can cause other symptoms that mimic
hardware problems.  Incorrectly colored DVDs being put into navigation
vehicles. This causes the system to either display
error messages, or causes system malfunctions that
mimic a hardware problem. This results in the client
leaving with a malfunctioning navigation system.
 The DVD version provided to the client is out-of date or incompatible with a particular model. This
inconveniences your client by delaying the repair, or
by causing additional (and unnecessary) returns to
your dealership.
 The client experiences bugs or other issues that have already been resolved in later versions currently
available at the fulfillment desk.
If the DVD is defective, or has any of the issues
mentioned above, return the vehicle to your client and
recommend that they order the proper DVD from the
Honda Disc Fulf illment Center (see ORDERING A DVD).
NOTE: Navigation DVDs do not come with replacement
navigation units. If you are replacing a navigation unit
because it is defective (following appropriate service
manual troubleshooting), and the DVD does not eject,
order a DVD. See Obtaining a navigation DVD.
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SymptomDiagnostic procedure Also check for
23-99
















 







Voice guidance cannot be heard,
is broken up, or there is static
Symptom Troubleshooting
(see page 23-122) Volume or voice feedback setting (see
Owner’s manual)
Navigation unit
Harness/fuses/switches
Voice control does not work/
respond Symptom Troubleshooting
(see page 23-123) Navigation unit
The wrong color DVD is installed
The DVD is damaged or dirty
Microphone harness/switches
Navigation cannot control HVAC
by voice command Symptom Troubleshooting
(see page 23-130) Wrong color DVD is installed
Harness/fuses/switches
Wrong navigation unit (model code)
Navigation cannot control XM
radio Symptom Troubleshooting
(see page 23-130)Low or weak battery
Navigation cannot control audio
system Symptom Troubleshooting
(see page 23-129)Wrong color DVD
Navigation display buttons do not
work or respond properly Symptom Troubleshooting
(see page 23-121) Navigation unit
Open/short between the XM receiver
or the GA-Net bus
The wrong color DVD is installed
The DVD is damaged or dirty
Today’s Destinations button is
dim and not selectable in the
Enter destination by screen
(grayed-out) The client has not entered a group
of locations for Today’s
Destinations. This is normal. The
button is only selectable if the
client is using this functionSee Owner’s Manual
Some set-up and information
functions of the navigation
system are grayed-out and do not
work Client did not select OK from
Disclaimer screen. Refer to
System Function Diagram
(see page 23-111)
Previous Destinations button is
dim and not selectable in the
Enter destination by screen
(grayed-out) The vehicle may be new, or the
client deleted the destination.
Enter a destination, and allow the
system to route to it. After the trip,
the Previous Destinations button
will be selectable
Address cannot be found or
system gives poor routing Verify proper operation and
system limitations using the
owner’s manual
See Answering customer
question Navigation coverage
in general troubleshooting
Refer to Database limitation in
the navigation system manual
to report database errorsDatabase limitations (address not in
database)
Wrong color DVD installed
OPEN/CLOSE function of the
display does not work Symptom Troubleshooting
(see page 23-132) Navigation unit
Harness
Navigation display will not close Symptom Troubleshooting (see page 23-133) Navigation unit
Harness
Navigation display does not open
or opens part way Symptom Troubleshooting
(see page 23-133) Navigation unit
Harness
PC card will not play/card icon on
audio screen cannot be selected Symptom Troubleshooting
(see page 23-67)Navigation unit
(cont’d)
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SymptomDiagnostic procedure Also check for
23-100Navigation System
Symptom Troubleshooting Index (cont’d)

















Navigation display stays on with
ignition switch in LOCK (0)
Symptom Troubleshooting
(see page 23-129) Harness/fuses/switches
Aftermarket accessory connected to
the system
DVD read error messages Symptom Troubleshooting (see page 23-127) Navigation unit
Wrong color DVD installed
Damaged DVD
Navigation system will not go
beyond the disclaimer screen and
displays the OK button See navigation display buttons do
not work or respond properly
Wrong color DVD installed
Scratched or damaged DVD
Navigation unit
The navigation anti-theft code
card is lost or missing See anti-theft feature (see page
23-90)
The vehicle icon lags behind
when the vehicle turns See self-inertial navigation
limitations (see page 23-90) Aftermarket accessories connected to
the system
GPS antenna/cable
Navigation screen is darker than
normal or takes time to brighten
when it is cold See LCD display unit limitations
(see page 23-91)
The navigation clock is off by 1 to
3 hours after replacing the
navigation unit See service precautions (see page
23-92)
Perform map matching (see page
23-94)
GPS antenna/cable
Check and adjust the clock settings
A new navigation DVD is needed See obtaining a navigation DVD (see page 23-94)
Time is not correct Reset Time Adjustment in set-up The wrong colored DVD or version is installed
The DVD is scratched or dirty See ‘‘DVD Handling and Cleaning’’ (see page 23-95)Navigation unit
The wrong DVD was installed and
now the system does not function
properly See Precaution customer Sneak
Previews (see page 23-97)
Install the correct version DVD
Check any official Honda service
website for more service information
about the navigation system
A specific city cannot be found See How to answer client questions about navigation
coverage (see page 23-97) The DVD is scratched or dirty
Refer to Database limitation in the
navigation system manual to report
database errors
The Honda Globe Screen (not the
Acura Globe Screen) appears
every time the vehicle is started Symptom Troubleshooting
(see page 23-135)
Also see the symptom The wrong DVD
was installed and now the system does
not function properly
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