Engine air ACURA CSX 2006 Service Repair Manual

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DTC B1168:
DTC B1169:
DTC B1170:
DTC B1178:
DTC B1187:
YES
NO
YES
NO YES
NO
YES
NO
22-265
Gauge Control Module Lost
Communication with ECM/PCM (Engine
Messages)
Gauge Control Module Lost
Communication with the PCM (A/T
Messages)
Gauge Control Module Lost
Communication with the ABS/VSA
modulator-Control Unit (ABS/VSA message)
F-CAN Communication Line Error
Gauge Control Module Lost
Communication with the SRS Unit (SRS
Message)
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 using the HDS.
2. Turn the ignition switch to LOCK (0), and then back to ON (II).
3. Start and run the engine for at least 5 seconds then turn the engine off.
4. Check for DTCs with the HDS.
Go to step 5.
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.
5. Check for DTCs in the ECM/PCM or ABS/VSA.
Troubleshoot the ECM/PCM or ABS/VSA.
Go to step 6. 6. Do the Gauge Control Module (Tach) Input Test
(see page 22-271).
Go to step 7.
Repair the faulty input then recheck for
DTCs.
7. Substitute a known-good gauge control module (tach).
8. Clear the DTCs with the HDS.
9. Turn the ignition switch to LOCK (0), and then back to ON (II).
10. Start and run the engine for at least 5 seconds then turn the engine off.
11. Check for DTCs with the HDS.
Substitute a known-good ECM/PCM and
retest. If the system/indication goes away, replace
the original ECM/PCM.
The original gauge control module (tach) is
faulty; replace the gauge control module (tach)
(see page 22-277).
Ar e DT Cs B1168, B1169, B117 0, B117 8, and / or B1187 i nd i cat ed ?
Are any DTCs indicated? Are all inputs OK ?
Ar e DT Cs B1168, B1169, B117 0, B117 8, and / orB1187 i nd i cat ed ?
08/08/21 14:35:19 61SNR030_220_0267
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DTC B1177:
YES
NO
YES
NO YES
NO
YES
NO
22-269
Battery Voltage Abnormal (’06
model)
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 DTCs with the HDS.
Go to step 8.
Go to step 4.
4. Clear the DTCs with the HDS.
5. Turn the ignition switch to LOCK (0), and then back to ON (II).
6. Crank the engine.
7. Check for DTCs with the HDS.
Go to step 8.
Intermittent failure. The gauge control
module (tach) and power supply voltage (IG1) that
is supplied to the gauge control module (tach) are
OK at this time. The battery may have been
discharged, and recovered. 8. Check the battery (see page 22-67) and the
charging system.
Go to step 9.
The battery needs a recharge or replacement,
or the charging system needs to repaired.
9. Turn the ignition switch to ON (II).
10. With the gauge control module (tach) 36P connector still connected, measure the voltage
between gauge control module (tach) 36P
connector terminal No. 17 and body ground.
Replace the gauge control module (tach)
(see page 22-277).
Repair an open or high resistance in the BRN
wire between the ignition switch and the gauge
control module (tach).
I s DT C B117 7 i nd i cat ed ?
I s DT C B117 7 i nd i cat ed ? I s t he bat t er y cond i t i on nor mal and t he char gi ng
sy st em OK ?
I s t he v ol t age about 7 .5 V ?
08/08/21 14:35:58 61SNR030_220_0271
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Description
Outside Air Temperature Indicator Logic Update to the outside air temperature
indicator while driving
Troubleshooting
22-279
Outside Air Temperature Indicator Calibration
The outside temperature sensor is located behind the
center of the front bumper. The gauge control module
(tach) uses measurements from this sensor to display
the outside air temperature.
Because of the location of the sensor, it may be affected
by heat reflection from the road, engine and radiator
heat or hot exhaust from surrounding traffic.
These conditions can heat soak the outside air
temperature sensor and cause inaccurate readings.
Logic has been written into the gauge control module
(tach) to help prevent abnormal or fluctuating outside
air temperature indicator readings.
Initial outside air temperature indication after the
ignition switch is turned to ON (II).
 If the engine coolant temperature is 60 °C (140 °F) or higher when the ignition switch is turned to ON (II),
the outside air temperature indicated the last time the
key was turned off will be displayed regardless of the
current temperature measured by the outside air
temperature sensor.
 If the engine coolant temperature is 59 °C (139 °F) or lower when the ignition switch is turned to ON (II), the
current temperature measured by the outside air
temperature sensor will be indicated. If the temperature measured by the outside air
temperature sensor is greater than the temperature on
the outside air temperature indicator, the outside air
temperature indicator will increase by 1 °C (1.8 °F) per
minute after the vehicle speed is greater than 30 km/h
(19 mph) for more than 1 minute and 30 seconds. It will
continue to increase until the current outside air
temperature is indicated. So, the first change to the
outside air temperature indicator is 1 minute and
30 seconds after the vehicle speed is greater than
30 km/h (19 mph). If the vehicle speed drops below
30 km/h (19 mph), the indicator will not update again
until the vehicle speed is increased to 30 km/h (19 mph)
or more for more than 1 minute and 30 seconds again.
If the outside air temperature is less than the indicated
temperature, the temperature will decrease 1 °C every
2 seconds (1 °F
every 1.1 seconds) until the current
outside air temperature is indicated regardless of
vehicle speed.
If the indicator displays ‘‘ ’’ for more than 2
seconds after selecting the outside air temperature
display mode, check the outside air temperature sensor
(see page 21-68), or gauge control module self-
diagnosis (see page 22-241).
(cont’d)
08/08/21 14:36:00 61SNR030_220_0281
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How to Troubleshoot
Symptom Troubleshooting of an open Power Supply and Ground Circuit
22-322Immobilizer System
Symptom Troubleshooting Information (cont’d)
Immobilizer
Indicator
Symptom
Line Error Engine StartKey
RegistrationTester
Communication
Keyless Operation
VBU line open
or short Comes on,
then goes off.
Possible
Possible Possible
Impossible
1
IG1 line open
or short Blinking Impossible
Impossible
Impossible
Possible
2
Blinking Impossible Impossible
Possible
Possible
IMOCD line
open or short
3
4 Immobilizer:
Possible
Keyless:
Impossible Impossible
Possible Possible
Comes on,
then goes off.
B-CAN line
open or short
Comes on,
then goes off. Impossible
Impossible
Possible
Possible
5
KEYSW line
short to groundGND (LG) line
open
6
7 (in spite of the key is
in the ignition switch)
Possible
Possible Possible Possible
Comes on,
then goes off.
KEYSW line
open
K-LINE line
open or short
Blinking Impossible Impossible
Impossible ImpossibleImpossible
Cause of
Malfunction
Terminal
No.
NOTE: If the HDS does not communicate with the vehicle, troubleshoot the DLC circuit (see page 11-
204).
1. Do the PGM-FI system DTCs check. If there are any DTCs, troubleshoot the indicated DTC.
2. Do the Body Electrical DTCs check. If there are any DTC, troubleshoot the indicated DTC.
3. Do the system check using the HDS. If there is a system check number, do the troubleshooting for the item indicated (see page 22-326).
4. Check the status log using the HDS. Troubleshoot the line with the highest counts (see page 22-328). If all the lines are ‘‘0’’ zero, the problem may not be caused by the immobilizer system, check for ignition or fuel problems.
NOTE: Once repaired, clear the status log by removing the back up power fuse, or disconnecting the battery.
If a malfunction occurs in the immobilizer circuit for the VBU, IG1 and GND (LG) lines, identify the lines to check with
this table.
08/08/21 14:37:00 61SNR030_220_0324
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Poor AM or FM radio reception or
interference (with navigation)
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
23-29
Symptom Troubleshooting
A
B
NOTE:
 Check the vehicle battery condition first.
 Check for aftermarket accessories plugged into the vehicle accessory power sockets (including cell
phone).
 Check the connectors for poor connections or loose terminals.
 Check the radio reception in an open area. Compare it to a known-good vehicle when ever possible.Poor
reception/interference can be caused by the
following:
– The radio station is far away.
– Atmospheric conditions are unfavorable.
– Tall buildings, mountains, or high-voltage power lines are nearby.
– Aftermarket metallic wi ndow tint.
1. Turn the ignition switch to ON (II).
2. Do the seek stop test (see page 23-78).
Multipath interference or weak station.
Operation is normal. Go to step 3.
3. Check if the radio reception/interference is the same in several locations.
Go to step 4.
Multipath interference or weak station.
Operation is normal.
4. Start the engine.
5. Check the reception/interference.
Check the antenna and radio grounds. If OK,
check the charging system and the ignition
system. Go to step 6.
6. Turn the ignition switch to LOCK (0). 7. Remove the right side C-pillar trim (see page 20-75).
8. Check the connections from the AM/FM antenna
amplifier to the window antenna.
Repair the connections, or substitute a
known-good AM/FM antenna amplifier and retest.
If the symptom/condition goes away, replace the
original AM/FM antenna amplifier (see page 23-87).
Go to step 9.
9. With the help of an assistant inside the vehicle, have the assistant shine a flashlight (A) along each
antenna wire (B). Check from the outside of the
vehicle for any breaks or openings in the antenna
wires (the light shines through).
Repair the window antenna. Go to AM/FM
antenna repair (see page 23-87), or replace the rear
window (see page 20-47).
Go to step 10.
(cont’d)
I s t he t est v ehi cl e w i t hi n 10 % of t he k now n-goodvehicle?
Is t he r ecept i on/ i nt er f er ence t he same?
I s t her e noi se ( st at i c or w hi ne) onl y w i t h t heengi ne r unni ng? Ar e t her e any l oose or d amaged connect i ons?
Ar e t her e any br eak s or cut s i n t he ant enna?
08/08/21 14:04:37 61SNR030_230_0032
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DYNOMITE -2009-

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Poor AM or FM radio reception or
interference (without navigation)
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
23-32
Audio System
Symptom Troubleshooting (cont’d)
AA
B
NOTE:
 Check the vehicle battery condition first.
 Check for aftermarket accessories plugged into the vehicle accessory power sockets (including cell
phone).
 Check the connectors for poor connections or loose terminals.
 Check the radio reception in an open area. Compare it to a known-good vehicle when ever possible.Poor
reception/interference can be caused by the
following:
– The radio station is far away.
– Atmospheric conditions are unfavorable.
– Tall buildings, mountains, or high-voltage power lines are nearby.
– Aftermarket metallic wi ndow tint.
1. Turn the ignition switch to ON (II).
2. Do the seek stop test (see page 23-78).
Multipath interference or weak station.
Operation is normal. Go to step 3.
3. Check if the radio reception/interference is the same in several locations.
Go to step 4.
Multipath interference or weak station.
Operation is normal.
4. Start the engine.
5. Check the reception/interference.
Check the antenna and radio grounds. If OK,
check the charging system and the ignition
system. Go to step 6.
6. Turn the ignition switch to LOCK (0). 7. Remove the right side C-pillar trim (see page 20-75).
8. Check the connections from the AM/FM antenna
amplifier to the window antenna.
Repair the connections, or substitute a
known-good AM/FM antenna amplifier and retest.
If the symptom/condition goes away, replace the
original AM/FM antenna amplifier (see page 23-87).
Go to step 9.
9. With the help of an assistant inside the vehicle, have the assistant shine a flashlight (A) along each
antenna wire (B). Check from the outside of the
vehicle for any breaks or openings in the antenna
wires (the light shines through).
Repair the window antenna. Go to AM/FM
antenna repair (see page 23-87), or replace the rear
window (see page 20-47).
Go to step 10.
I s t he t est v ehi cl e w i t hi n 10 % of t he k now n-goodvehicle?
Is t he r ecept i on/ i nt er f er ence t he same?
I s t her e noi se ( st at i c or w hi ne) onl y w i t h t heengi ne r unni ng? Ar e t her e any l oose or d amaged connect i ons?
Ar e t her e any br eak s or cut s i n t he ant enna?
08/08/21 14:04:38 61SNR030_230_0035
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General Operation
Anti-theft Feature
Symptom DiagnosisSelf-Inertial Navigation Limitations
23-90Navigation System
General Troubleshooting Information
Refer to the Navigation System manual for the
navigation system operating procedures.
The navigation system has a coded theft protection
circuit. Be sure you have the client’s anti-theft security
code before;
 Disconnecting the battery
 Disconnecting the navigation unit A (17P) and C (12P) connector
 Removing the No. 23 (10 A) fuse from the under-hood fuse/relay box
After service, reconnect power to the navigation unit,
and turn the ignition switch ON (II). Enter the 4-digit
anti-theft security codes, then select Done.
If the code cannot be found, use the interactive Network
(iN) to look it up. You can view the serial number in one
of the Navi ECU diagnostic screen (see page 23-139).
Alternatively, you can find the serial number from the
navigation unit in the dash.
When replacing the navigation unit, be sure to give the
client the new anti-theft security code.
Certain circumstances and system limitations can result
in occasional vehicle positioning errors. Some clients
may think this indicates a problem with the navigation
system when, in fact, the system is normal. Keep the
following items in mind when interviewing clients
about symptoms of the navigation system. The limitations of the self-inertial portion of the
navigation system (the yaw rate sensor and the vehicle
speed signal) can cause some discrepancies between
the vehicle’s actual position and the indicated vehicle
position (GPS vehicle position).
The following circumstances may cause vehicle
positioning errors:
 Moving the vehicle with the engine stopped and the vehicle stopped, such as by ferry or tow truck, or if
the vehicle is spun on a turn table.
 Tire slippage, changes in tire rolling diameters, and some driving situations may cause discrepancies in
travel distances. Examples of this include:
– Continuous tire slippage on a slippery surface.
– Driving with snow chains mounted.
– Abnormal tire pressure.
– Incorrect tire size.
– Frequent lane changes across a wide highway.
– Continuous driving on a straight or gently curving highway.
 Tolerances in the system and map inaccuracies will sometimes limit how precisely the vehicle position is
indicated. Examples of this include:
– Driving on roads not shown on the map (map matching is not possible).
– Driving on a road that winds in one direction, such as a loop bridge, an interchange, or a spiral parking
garage.
– Driving on a road with a series of sharp hair-pin turns.
– Driving near a gradual highway exit or transition.
– Driving on one of two close parallel roads.
– Making many 90 degree turns.
– The direction to destination icon or the destination icon shown or the map may be up to several
hundred feet away from the actual location.
08/08/21 14:06:24 61SNR030_230_0093
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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.
08/08/21 14:06:26 61SNR030_230_0099
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DYNOMITE -2009-

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Poor AM or FM radio reception or
interference (with navigation)
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
23-196
Audio System
Symptom Troubleshooting
A
B
NOTE: Check the vehicle battery condition first.
 Check for aftermarket accessories plugged into the vehicle accessory power sockets (including cell
phones).
 Check the connectors for poor connections or loose terminals.
 Check the radio reception in an open area. Compare it to a known-good vehicle when ever possible.Poor
reception/interference can be caused by the
following:
– The radio station is far away.
– Atmospheric conditions are unfavorable.
– Tall buildings, mountains, or high-voltage power lines are nearby.
– Aftermarket metallic wi ndow tint.
1. Turn the ignition switch to ON (II).
2. Do the seek stop test (see page 23-255).
Multipath interference or weak station.
Operation is normal. Go to step 3.
3. Check if the radio reception/interference is the same in several locations.
Go to step 4.
Multipath interference or weak station.
Operation is normal.
4. Start the engine.
5. Check the reception/interference.
Check the antenna and radio grounds. If OK,
check the charging system and the ignition
system. Go to step 6.
6. Turn the ignition switch to LOCK (0). 7. Remove the right side C-pillar trim (see page 20-75).
8. Check the connections from the AM/FM antenna
amplifier to the window antenna.
Repair the connections, or substitute a
known-good AM/FM antenna amplifier and retest.
If the symptom/condition goes away, replace the
original AM/FM antenna amplifier (see page
23-263).
Go to step 9.
9. With the help of an assistant inside the vehicle, have the assistant shine a flashlight (A) along each
antenna wire (B). Check from the outside of the
vehicle for any breaks or openings in the antenna
wires (the light shines through).
Repair the window antenna. Go to AM/FM
antenna repair (see page 23-264), or replace the
rear window (see page 20-47) if the damaged
section is too long.
Go to step 10.
I s t he t est v ehi cl e w i t hi n 10 % of t he k now n-goodvehicle?
Is t he r ecept i on/ i nt er f er ence t he same?
I s t her e noi se ( st at i c or w hi ne) onl y w i t h t heengi ne r unni ng? Ar e t her e any l oose or d amaged connect i ons?
Ar e t her e any br eak s or cut s i n t he ant enna?
08/08/21 14:09:50 61SNR030_230_0199
ProCarManuals.com
DYNOMITE -2009-

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Poor AM or FM radio reception or
interference (without navigation)
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
23-199
A
B
NOTE: Check the vehicle battery condition first.
 Check for aftermarket accessories plugged into the vehicle accessory power sockets (including cell
phones).
 Check the connectors for poor connections or loose terminals.
 Check the radio reception in an open area. Compare it to a known-good vehicle when ever possible.Poor
reception/interference can be caused by the
following:
– The radio station is far away.
– Atmospheric conditions are unfavorable.
– Tall buildings, mountains, or high-voltage power lines are nearby.
– Aftermarket metallic wi ndow tint.
1. Turn the ignition switch to ON (II).
2. Do the seek stop test (see page 23-255).
Multipath interference or weak station.
Operation is normal. Go to step 3.
3. Check if the radio reception/interference is the same in several locations.
Go to step 4.
Multipath interference or weak station.
Operation is normal.
4. Start the engine.
5. Check the reception/interference.
Check the antenna and radio grounds. If OK,
check the charging system and the ignition
system. Go to step 6.
6. Turn the ignition switch to LOCK (0). 7. Remove the right side C-pillar trim (see page 20-75).
8. Check the connections from the AM/FM antenna
amplifier to the window antenna.
Repair the connections, or substitute a
known-good AM/FM antenna amplifier and retest.
If the symptom/condition goes away, replace the
original AM/FM antenna amplifier (see page
23-263).
Go to step 9.
9. With the help of an assistant inside the vehicle, have the assistant shine a flashlight (A) along each
antenna wire (B). Check from the outside of the
vehicle for any breaks or openings in the antenna
wires (the light shines through).
Repair the window antenna. Go to AM/FM
antenna repair (see page 23-264), or replace the
rear window (see page 20-47) if the damaged
section is too long.
Go to step 10.
(cont’d)
I s t he t est v ehi cl e w i t hi n 10 % of t he k now n-goodvehicle?
Is t he r ecept i on/ i nt er f er ence t he same?
I s t her e noi se ( st at i c or w hi ne) onl y w i t h t heengi ne r unni ng? Ar e t her e any l oose or d amaged connect i ons?
Ar e t her e any br eak s or cut s i n t he ant enna?
08/08/21 14:09:52 61SNR030_230_0202
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DYNOMITE -2009-