Honda HR-V: DTC Troubleshooting 61-11: Modulator-Control Unit Power Source Circuit (IG) Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information.
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1. Problem verification:
- Turn the vehicle to the ON mode.
- Clear the DTC with the HDS.
- Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
- Start the engine.
- Check for DTCs with the HDS.
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Is DTC 61-11 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.
2. VSA modulator-control unit check 1:
- Check and note the parameter(s) below with the HDS.
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- Wait for 15 seconds or more.
Is 9.5 V or more indicated?
YES
Check the 12 volt battery terminal, then check for loose terminals between the 12 volt battery and the VSA modulator-control unit 21P connector.
NO
Go to step 3.
3. VSA modulator-control unit check 2:
- Using a voltmeter, measure and note the voltage across the 12 volt battery terminals.
NOTE: If the voltage is below 9.5 V, check the 12V battery, and check the PGM-FI DTCs - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the CVT System (CVT).
- Wait for 15 seconds or more.
- Compare the voltage noted in step 2 to the voltage in step 3.
Is the difference between the two voltage readings less than 3 V?
YES
Check the 12V battery, and check the PGM-FI DTCs - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the CVT System (CVT).
NO
Go to step 4.
4. VSA modulator-control unit check (update):
- Update the VSA modulator-control unit if it does not have the latest software.
- Turn the vehicle to the OFF (LOCK) mode.
- Start the engine.
- Check for DTCs with the HDS.
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Is DTC 61-11 indicated?
YES
Check for loose terminals in the VSA modulator-control unit 21P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit.
NO
Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.
READ NEXT:
DTC Troubleshooting: 62-11: Modulator-Control Unit Power Source Circuit (IG)
High Voltage
NOTE: Before you troubleshoot, review the general troubleshooting
information.
1. Problem verification:
Turn the vehicle to the ON mode.
Clear the DTC with the HDS.
Turn the vehicle to the OFF (
DTC Troubleshooting 65-11: Brake Fluid Level Switch Circuit Malfunction
NOTE:
Bleeding the brake system while turn the vehicle to the ON mode can
cause this DTC.
Before you troubleshoot, review the general troubleshooting information.
DTCs (VSA)
1. Brake fluid leve
DTC Troubleshooting 68-11: Brake Pedal Position Switch Stuck OFF
NOTE:
Troubleshoot any PGM-FI DTCs first.
Before you troubleshoot, review the how to troubleshoot the VSA system.
1. VSA modulator-control unit performance check:
Start the engine.
Check the p
SEE MORE:
Removal, Cleaning & Inspection, Installation
REMOVAL
NOTE: Examples used in this article are general in nature and do not
necessarily relate
to a specific engine or system. Illustrations and procedures have been chosen
to guide mechanic through engine overhaul process. Descriptions of processes
of cleaning, inspection, assembly and machine sh
Using HFL
■HFL Buttons
(Pick-up) button: Press to go
directly to the Phone screen or to answer an
incoming call.
(Hang-up/Back) button: Press
to end a call or to cancel a command.
(Talk) button: Press to call a
number with a stored voice tag.
(Phone) button: Press to go
directly to the Phone screen.
