DTC C0020-14, C1022-14

DTC C0020-14  : Pump Motor Circuit Failure (Stuck OFF)

DTC C1022-14  : Power Source Failure for Pump Motor

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to:

How to Troubleshoot the VSA System (2014 2015 2016) or

How to Troubleshoot the VSA System (2017 2018 2019 2020), 

DTC (VSA)

1. DTC check

   - 1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

   - 4. Wait 20 seconds or more.

   - 5. Test-drive the vehicle at 6 mph (10 km/h) or more.

   - 6. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   C0020-12 Pump Motor Circuit Failure (Stuck ON)
   C0020-14 Pump Motor Circuit Failure (Stuck OFF)
   C1022-14 Power Source Failure for Pump Motor

   Is DTC C0020-14 or C1022-14 indicated?

   YES 

   If only DTC C0020-14 or C1022-14 are indicated, go to step 2.

   YES 

   If DTC C0020-12 is also indicated, go to DTC C0020-12 .

   NO 

   Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting - Refer to:

   How to Troubleshoot the VSA System (2014 2015 2016) or

   How to Troubleshoot the VSA System (2017 2018 2019 2020), 

   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. Fuse check

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Check the following fuse.

   Fuse	No. B2-8 (40 A)
   Location	Main under-hood fuse box

   Is the fuse OK?

   YES 

   The fuse is OK. Reinstall the fuse, then go to step 3.

   NO 

   Replace the fuse. If the fuse blows again, repair a short to ground in the No. B2-8 (40 A) fuse circuit.

3. Open wire check (+B VSA MTR (40A) line)

   - 1. Disconnect the following connector.

   VSA modulator-control unit 38P connector

   - 2. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	VSA modulator-control unit 38P connector: disconnected
   Test point 1	VSA modulator-control unit 38P connector No. 2 - Refer to: VSA Modulator-Control Unit Connector for Inputs and Outputs (2014 2015), or VSA Modulator-Control Unit Connector for Inputs and Outputs (2016), or VSA Modulator-Control Unit Connector for Inputs and Outputs (2017 2018 2019 2020)
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   The +B VSA MTR (40A) wire is OK. Check for loose terminals and poor connections in the VSA modulator-control unit 38P connector. If they are OK, replace the VSA modulator-control unit .

   NO 

   Repair an open in the wire between the No. B2-8 (40 A) fuse in the main under-hood fuse box and the VSA modulator-control unit.