Honda HR-V: DTC B1280 Turn Signal Switch Circuit Malfunction
.png)
DTC (MICU)
NOTE : If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks.
1. Turn signal/hazard warning lights system check 1:
- Turn the vehicle to the ON mode.
- Check the parameter(s) below with the HDS.
.png)
Are both data list values indicated OFF?
YES
Go to step 2.
NO
Go to step 4.
2. Turn signal/hazard warning lights system check 2:
- Operate the turn signal switch to the left or right position.
- Check the parameter(s) below with the HDS.
.png)
Are both data list values indicated ON?
YES
Go to step 3.
NO
Intermittent failure, the system is OK at this time.
3. Shorted wire check (R TURN SW to L TURN SW line):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Combination light switch 12P connector
- Connect terminals A and B with a jumper wire.
.png)
.png)
- Check the parameter(s) below with the HDS.
.png)
Are both data list values correct?
YES
The R TURN SW wire and the L TURN SW wire is not shorted. Replace the combination light switch.
NO
Repair a short between the wires.
4. Shorted wire check (L TURN SW line or R TURN SW line):
- Check the parameter(s) below with the HDS.
.png)
Is Turn Signal Switch (LEFT) value ON?
YES
Go to step 5.
NO
Go to step 6.
5. Shorted wire check (L TURN SW line):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Combination light switch 12P connector
- Check the parameter (s) below with the HDS.
.png)
Is Turn Signal Switch (LEFT) value ON?
YES
Repair a short to ground in the wire.
NO
The L TURN SW wire is OK. Replace the combination light switch.
6. Shorted wire check (R TURN SW line):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Combination light switch 12P connector
- Check the parameter(s) below with the HDS.
.png)
Is Turn Signal Switch (RIGHT) value ON?
YES
Repair a short to ground in the wire.
NO
The R TURN SW wire is OK. Replace the combination light switch.
READ NEXT:
DTC B1281, B1282, B1283, B1284 Front Wiper Position Circuit
Malfunctions
DTC Troubleshooting: B1281, B1282, B1283, B1284
DTC (MICU)
NOTE : If you are troubleshooting multiple DTCs, be sure to follow the
instructions in B-CAN System
Diagnosis Test Mode A - Refer to: Body
DTC U1280 (MICU) B-CAN Communication Bus Line Error (BUS-OFF)
DTC (MICU)
NOTE : If you are troubleshooting multiple DTCs, be sure to follow the
instructions in B-CAN System
Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System
Diagn
DTC U128D (MICU) MICU Lost Communication With Gauge Control Module
NOTE : The DTC may be stored due to the grounding failure or the power source
failure at the transmitting
control unit (the grounding inspection and the power source inspection on each
control unit
SEE MORE:
Improvement Control In Practical Use Fuel Consumption System Description -
Effective Control
The control system for improved fuel economy in actual traffic aims at
disseminating eco-driving. It consists of
an effective control system, ambient illumination and instantaneous fuel
consumption indicator. The effective
control system is activated by operating the ECON switch to set the ECON ON
DTC Troubleshooting
NETWORK COMMUNICATION DTC TROUBLESHOOTING INDEX
NOTE : Record all DTCs, and sort them by DTC type using the DTC
troubleshooting index, then troubleshoot
the DTC(s) in this order:
Internal error DTCs
Loss of communication DTCs
Signal error DTCs
MICU
Gauge Control Module
Climate Control Unit
