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Tachometer Speedometer
22-277
Gauge Control Module Replacement
A
B A
B
NOTE: Before replacing the gauge control module, do
the ‘‘Rewriting the ODO Data and Transferring the
Maintenance Minder Data to a New Gauge Control
Module’’ (see page 22-
276).
1. Remove the subdisplay visor assembly (see page 20-100).
2. Remove the three screws from the gauge control module (tach) (A).
3. Disconnect the 36P connector (B) from the gauge control module (tach).
4. Install the gauge control module (tach) in the reverse order of removal. 1. Remove the instrument panel (see page 20-98).
2. Remove the three screws from the gauge control
module (speedo) (A).
3. Disconnect the 12P connector (B) from the gauge control module (speedo).
4. Install the gauge control module (speedo) in the reverse order of removal.
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22-278Gauges
Dash Lights Brightness Controller and Odometer Select/Reset Switch Test/
Replacement
A
Terminal
Position SEL/RESET
button pressed
( ) button pressed km/h-mph change
button pressed
( ) button pressed 12
467
35
1. Remove the subdisplay visor (see page 20-
100) and
disconnect the connectors.
2. Remove the two screws and the dash lights brightness controller and odometer select/reset
switch (A).
3. Check for continuity between the terminals in each switch position according the table.
4. If the continuity is not as specified, replace the dash lights brightness controller and odometer select/
reset switch.
5. Install the dash lights brightness controller and odometer select/reset switch in the r everse order of
removal.
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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)
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Calibration
Example:
Incorrect value = 20 °C (68 °F)
Desired correction value = 1 °C ( 2 °F)
Correct value = 21 °C (70 °F)
Desired correction value = 1 °C ( 2 °F)
Correct value = 19 °C (66 °F)
22-280 Gauges
Outside Air Temperature Indicator Calibration (cont’d)
B
A
C
The outside air temperature indicator’s displayed
temperature can be recalibrated 3 °C (or 5 °F) to
meet the client’s expectations. 1. Turn the ignition switch to ON (II).
2. Select the outside air temperature display.
3. Press and hold the SEL/RESET button until the trip meter resets, then release it. Press, and continue to
hold, the switch again, and the display will scroll
through temperature settings from 3 °C to 3 °C
(or 5 °F to 5 °F) as shown.
4. When the desired correction value appears on the display, release the button, and the recalibrated
outside air temperature will be displayed.
NOTE: To recalibration temperature is not the value
the sensor sees. Therefore the temperature can
only be adjusted degrees from the sensor. NOTE: To recalibrate the display to the true
temperature, remove the outside air temperature
sensor (A), but leave it connected. Submerge the sensor
and a thermometer (B) in a container of ice water (C).
Select the calibration mode as described above, then
recalibrate the display to the true temperature.
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(#')System
Check No. System Check Possible Cause
22-326Immobilizer System
System Check
1. Connect the HDS to the data link connector.
2. Turn the ignition switch to ON (II).
3. Monitor the SYSTEM CHECK in the IMMOBILIZER INFO with the HDS.
4. If the HDS displays NORMAL N-1, the immobilizer system is OK at this time, refer to the STATUS LOG. If the HDS
displays any other messages, check as follows:
A-1 The key is not
registered This key is not registered in the immobilizer-keyless control unit. Try
to register keys using the HDS.
No communication between the antenna and the immobilizer key
because of interference from metal such as key chains/key rings/
other keys.
Low battery voltage.
A-2 Communication error between the
key and
immobilizer unit Intermittent interruption between transponder and immobilizer-
keyless control unit.
The immobilizer key type is incorrect
non-Acura key.
Key failure (transponder failure)
No communication between the antenna and the immobilizer key
because of interference from metal such as key chains/key rings/
other keys.
Low battery voltage.
A-3 No communication between the key
and immobilizer
unit The ignition switch was turned to ON (II) with a non-immob
ilizer key.
The immobilizer key type is incorrect non-Acura key.
Key failure (transponder failure)
No communication between the antenna and the immobilizer key
because of interference from metal such as key chains/key rings/
other keys.
Low battery voltage.
Immobilizer-keyless control unit failure
B-1 The ECM/PCM is not registered The ECM/PCM was not registered. Try to register the ECM/PCM
using the HDS.
No communication between the ECM/PCM and the immobilizer-
keyless control unit because of low battery voltage.
No communication between the immobilizer-keyless control unit
and the ECM/PCM because of interference.
Open in the IG1 line
B-2 Error of communication
format in ECM/
PCM The ECM/PCM was not registered. Try to register the ECM/PCM
using the HDS.
No communication between the ECM/PCM and the immobilizer-
keyless control unit because of low battery voltage.
No communication between the immobilizer-keyless control unit
and the ECM/PCM because of interference.
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Symptom Diagnostic procedure Also check for
23-4
Audio System
Symptom Troubleshooting Index
Poor AM or FM radio reception or
interference (with navigation)
Symptom Troubleshooting (see page 23-29) AM/FM antenna lead and/or
sublead short or open in the
wire
Poor AM or FM radio reception or
interference (without navigation) Symptom Troubleshooting (see page 23-32) AM/FM antenna lead and/or
sublead short or open in the
wire
Audio unit power switch will not
turn on (No information display
and no sound) (with navigation) Symptom Troubleshooting (see page 23-35)
Audio unit power switch will not
turn on (No information display
and no sound) (without
navigation) Symptom Troubleshooting (see page 23-36)
Audio unit power switch will not
turn off (with navigation) Symptom Troubleshooting (see page 23-38)
Audio unit power switch will not
turn off (without navigation) Symptom Troubleshooting (see page 23-39)
No sound is heard from the
speaker(s) (display is normal)
(with navigation) Symptom Troubleshooting (see page 23-39)
No sound is heard from the
speaker(s) (display is normal)
(without navigation) Symptom Troubleshooting (see page 23-48)
Auxiliary i nput sound is low or
cannot be heard Symptom Troubleshooting (see page 23-50)
Audio system sound is weak or
distorted (display is normal) Symptom Troubleshooting (see page 23-53)
Radio preset memory is lost Symptom Troubleshooting (see page 23-54) Internal error
Volume does not change Symptom Troubleshooting (see page 23-54)
Volume does not increase with
speed (with navigation) Symptom Troubleshooting (see page 23-55)
Volume does not increase with
speed (without navigation) Symptom Troubleshooting (see page 23-56)
Volume is too high or too low
when driving at freeway speeds Symptom Troubleshooting (see page 23-57)
Radio tuner does not change
stations Symptom Troubleshooting (see page 23-57)
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SymptomDiagnostic procedure Also check for
23-5
Navigation unit button
illumination does not work (with
navigation)Symptom Troubleshooting (see page 23-58)
Audio unit button illumination
does not work (without
navigation) Symptom Troubleshooting (see page 23-59)
Display does not dim or brighten
with dimmer (without navigation) Symptom Troubleshooting (see page 23-60)
Audio disc does not load Symptom Troubleshooting (see page 23-61)
Audio disc does not eject Symptom Troubleshooting (see page 23-61)
Audio disc does not play Symptom Troubleshooting (see page 23-62)
Audio disc skips Symptom Troubleshooting (see page 23-62)
Audio remote switch does not
work properly (with navigation) Symptom Troubleshooting (see page 23-63)
Audio remote switch does not
work properly (without
navigation) Symptom Troubleshooting (see page 23-65)
Audio disc cannot be inserted
and/or ejected (with navigation) Symptom Troubleshooting (see page 23-66)
Display can be opened and/or
closed even when an audio disc is
being inserted or ejected Replace the navigation unit (see page
23-155)
PC card will not play/card icon on
audio screen cannot be selected
(with navigation) Symptom Troubleshooting (see page 23-67)
Error code: XM NO SIGNAL or XM
ANTENNA is displayed (with
navigation) Symptom Troubleshooting (see page 23-68)
XM radio display is blank and no
station information is displayed
(with navigation) Symptom Troubleshooting (see page 23-68)
XM radio preset memory is lost
(with navigation) Symptom Troubleshooting (see page 23-71)
Poor or no sound with XM radio
(Audio unit does display XM
channels) (with navigation) Symptom Troubleshooting (see page 23-72)
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Overview
Speed-sensitive volume compensation (SVC)Contents Audio output
Left front CH Right front CH Right rear CH Left rear CH
23-6 Audio System
System Description
The audio unit acts as the processor for all audio functions. Select audio functions from the audio unit, the audio
remote (on the steering wheel), or by using the navigation voice control system. The audio display provides the
current audio status. For vehicles with navigation, additional audio information is available by touching the audio
button on the navigation audio screen (See the owner’s manual and the navigation system manual for more details.).
The XM receiver passes its signal to the audio unit. In addition, it communicates with the audio unit via the GA-Net bus.
Any open connections in the GA-Net bus circuit causes audio and navigation functions to appear inoperative.
For vehicles with navigation, pressing the open/close switch on the navigation display panel allows access to the CD
slot and PC card.
A security signal is daisy-chained between the audio and vehicle components for integration into the vehicle’s security
system.
Some audio systems are equipped with speed-sensitive volume compensation (SVC). The navigation or audio unit
receives the vehicle speed pulse (VSP) from the ECM/PCM. The system processes the speed input and increases the
navigation or audio system volume level as the vehicle speed increases to compensate for the various interior noises
that occur at higher speeds. When the vehicle slows down, the volume returns to its normal level. The SVC has four
settings: SVC OFF, LOW, MID and HIGH that can be adjusted using the navigation or audio unit. The SVC comes from
the factory with the MID setting as the default.
To change the audio unit SVC setting, press the tune folder sound knob repeatedly until the SVC is displayed, rotate
the knob to adjust the SVC to the desired setting (SVC OFF, LOW, MID, or HIGH).
To change the navigation unit SVC setting, press the AUDIO button, and then select the SOUND icon on the navigation
display. Press the navigation display to select the desired setting (OFF, LOW, MID, HI).
The navigation system allows voice control for the audio, XM, PC card, and CD player. The GA-Net (audio unit)
communicates the voice control commands. When using the navigation TALK/BACK button, the audio is muted on all
speakers and you hear navigation sound on the front channels. When using the navigation or route guidance (RG), the
front speakers provides the navigation sound and the rear speakers continue to play. For more information, see the
navigation section. The outline of the interruption function is shown in this table.
Navigation
TALK/BACK Buttons Navigation voice
output Navigation voice
output Muted Muted
Route guidance Navigation voice outputNavigation voice
output Audio Audio
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