Honda HR-V: VSA & TPMS Control Unit - Diagnostics

DTC TROUBLESHOOTING

DTC TROUBLESHOOTING C0077-78: LOW TIRE AIR PRESSURE

NOTE:

• Before troubleshooting, check the outside air temperature sensor. If outside air temperature sensor is failed, the VSA modulator-control unit may set this code.
• Make sure to avoid lopsided loading on one side (left or right) of the vehicle and excessive loading.
• Make sure to inflate the tires to recommended pressure, not higher than the specified pressure, when TPMS calibration is being performed.
• Before you troubleshoot, review the general troubleshooting information.

1. Tire pressure check:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Check all four tires for size, inflation, and wear.

Are all four tires the correct size, properly inflated, and worn evenly?

YES

The system is OK at this time. Do the TPMS calibration.

NO

Install the correct tires, a known-good set of tires, or set the tires to the correct pressure, and do the TPMS calibration.

DTC TROUBLESHOOTING C0078-4A: DIFFERENT DIAMETER TIRE DETECTION

NOTE:

• The DTC will be indicated when the vehicle has a different diameter tire(s) compared to the other tires.
• Check the record of using tires and wheels of a different size from originally supplied with the vehicle including the use of temporary spare tire.
• Before you troubleshoot, review the general troubleshooting information.

1. Tire and wheel check:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Check all four tires for size, inflation, and wear.

Are all four tires the correct size, properly inflated, and worn evenly?

YES

The system is OK at this time. Do the TPMS calibration.

NO

Install the correct tires, a known-good set of tires, or set the tires to the correct pressure, and do the TPMS calibration.

DTC TROUBLESHOOTING C1030-13: TPMS SWITCH CIRCUIT OPEN

NOTE:

• Pressing and holding the TPMS switch for more than 60 seconds will cause this DTC to set.
• Before you troubleshoot, review the general troubleshooting information.

1. Problem verification:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Clear the DTC with the HDS.
3. Turn the vehicle to the OFF (LOCK) mode, then the ON mode.
4. Wait 60 seconds or more.
5. Check for DTCs with the HDS.

Is DTC C1030-13 indicated?

YES

The failure is duplicated. Go to step 2.

NO

Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.

2. Open wire check (TPMS SW line) 1:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.

TPMS switch 5P connector.

3. Turn the vehicle to the ON mode.
4. Measure the voltage between test points 1 and 2.

Is there battery voltage?

YES

The TPMS SW wire is not open. Go to step 3.

NO

Go to step 4.

3. Open wire check (GND line):

Measure the voltage between test points 1 and 2.

Is there battery voltage?

YES

The GND wire is OK. Check the TPMS switch.

NO

Repair an open in the wire between the TPMS switch and body ground (G501).

4. Open wire check (TPMS SW line) 2:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Remove the gauge control module (Do not disconnect the connector).
3. Turn the vehicle to the ON mode.
4. Measure the voltage between test points 1 and 2.

Is there battery voltage?

YES

Repair an open in the wire between the TPMS switch and the gauge control module.

NO

The TPMS SW wire is OK. Do the troubleshooting for the gauge control module. If necessary, substitute a known-good gauge control module, and recheck.

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