Honda Accord: DTC Troubleshooting
DTC U0155:
Immobilizer-keyless Control Unit Lost Communication With Gauge Control Module
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC U0155 Indicated? YES
-Do the gauge control module input test, and do all power, ground, and communication input tests (see page 22-347). If the tests prove OK, replace the gauge control module (see page 22-351 ) . NO
-lntermittent failure, the system is OK at this time.
Check for loose or poor connections at the gauge control module and the related u n i t s .
DTC U0199:
Immobilizer-keyless Control Unit Lost Communication With Door Multiplex Control Unit
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC U0199 indicated? YES
-Do the door multiplex control unit input test, and do all power, ground, and communication input tests (see page 22-292). If the tests prove OK, replace the power window master switch, 4-door (see page 22-305), 2-door (see page 22-306).
NO
-lntermittent failure, the system is OK at this time.
Check for loose or poor connections at the door multiplex control unit and the related u n i t s .
DTC U1282: i
mmobilizer-keyless Control Unit Lost Communication With Driver's MICU
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
is DTC U1282 indicated? YES
-Do the driver's MICU input test, and do all power, ground, and communication input tests (see page z2-i51). if the tests prove OK, replace the driver's under-dash fuse/relay box, USA models (see page 22-86), Canada models (see page 22-87).
NO-
lntermittent failure, the system is OK at this time.
Check for loose or poor connections at driver's under-dash fuse/relay box connector P (20P) and the related units.
Circuit Diagram
...
Symptom Troubleshooting
Information
General Check Before Troubleshooting
Before troubleshooting the immobilizer system, check the following general
items and solve any if applicable:
• The battery is low; charge the battery ful ...
See also:
To Stop Playing a USB Flash Memory Device
To play the radio, press the FM/AM,
or
button. Press the CD button
to switch to the disc mode. Press the
AUX button to switch back to the
USB.
If you reconnect the same USB flash
memory ...
Menu Display
To select any setting such as the
clock, sound adjusting, or the
compass (if equipped), press the
MENU button. To use any audio
system function, the ignition switch
must be in the ACCESSORY ...
Throttle Body Test
Carbon Accumulation Check
NOTE: If the malfunction indicator lamp (MIL) has been
reported on, check for diagnostic trouble codes (DTCs).
1. Connect the HDS to the data link connector (DLC) (A)
l ...