Honda HR-V: DTC B12C5 Engine Start/Stop Switch Failure
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DTC (Power Control Unit)
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. Problem verification:
- Clear the DTCs with the HDS.
Clear DTCs
- Press the engine start/stop button at least 20 times, then wait for at least 20 seconds.
- Check for DTCs with the HDS.
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Is DTC B12C5 indicated?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor connections.
2. Determine possible failure area (+B SMART line, SSB GND line, or other):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Engine start/stop switch 10P connector
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
The +B SMART and SSB GND wires are OK. Go to step 3.
NO
Go to step 6.
3. Shorted wire check (SS2 (-), SS1 (+) lines):
- Disconnect the following connector.
Keyless access control unit connector B (36P)
- Check for continuity between test points 1 and 2 individually.
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Is there continuity?
YES
Repair short to ground in the wire.
NO
The SS2 (-) and SS1 (+) wires are not shorted. Go to step 4.
4. Open wire check (SS2 (-), SS1 (+) lines):
Check for continuity between test points 1 and 2 respectively.
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Is there continuity?
YES
The SS2 (-) and SS1 (+) wires are OK. Go to step 5.
NO
Repair an open or high resistance in the wire.
5. Engine start/stop switch check:
Do the engine start/stop switch test.
Is the engine start/stop switch OK?
YES
Replace the keyless access control unit.
NO
Replace the engine start/stop switch.
6. Open wire check (+B SMART line):
Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Repair an open or high resistance in the SSB GND wire.
NO
Repair an open or high resistance in the +B SMART wire.
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DTC B12C6 Electric Steering Lock Switch C/D Monitor Circuit Failure
DTC (Power Control Unit)
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
DTC B12C7 Electric Steering Lock Motor Circuit Failure
DTC (Power Control Unit)
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
DTC B12D0, B12D1, B12D2
NOTE: Refer to the DTC code shown on the display, and then inspect the
connectors and terminals based on
the instructions in the table below.
DTC (Power Control Unit)
NOTE:
If you are troubleshoot
SEE MORE:
Description
AUTOMATIC DIMMING MIRRORS SYSTEM DESCRIPTION - CONTROL/FUNCTION
When the automatic dimming off button is turned ON, the control unit receives
signals from each sensor. Based
on the difference between the two lux levels (the light outside the vehicle and
the light from the headlights of
the other v
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes On
â– Reasons for the indicator to come on
Comes on when the engine oil pressure is low.
â– What to do as soon as the indicator comes on
1. Immediately park the vehicle on level ground in a safe place.
2. If necessary, turn the hazard warning lights on.
â–
