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.
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NOTE: Before you troubleshoot, review the general troubleshooting
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1. Problem verification:
Turn the vehicle to the ON mode.
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NOTE:
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