DTC P16F6 (19-21 9-Speed A/T)

DTC P16F6  : Starter Cut Relay 2 Control Circuit High Voltage

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Fuel and Emissions Systems .

DTC (PGM-FI)

1. Problem verification

   - 1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

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

   - 4. Start the engine.

   - 5. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   P16F6 Starter Cut Relay 2 Control Circuit High Voltage

   Is DTC P16F6 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at starter cut relay 2 and the PCM.

   If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot - Refer to: How to Troubleshoot the Fuel and Emissions Systems .

2. Relay check

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

   - 2. Remove starter cut relay 2.

   - 3. Test starter cut relay 2.

   Is the relay OK?

   YES 

   Go to step 3.

   NO 

   Replace starter cut relay 2.

3. Shorted wire check (STRLY2 line to power)

   - 1. Jump the SCS line with the HDS, and wait more than 1 minute.

   SCS short

   - 2. Disconnect the following connector.

   PCM connector A (50P)

   - 3. Turn the vehicle to the ON mode.

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

   Test condition	Vehicle ON mode
   	Starter cut relay 2: disconnected
   	PCM connector A (50P): disconnected
   Test point 1	PCM connector A (50P) No. 42 - Refer to: PCM Connector for Inputs and Outputs (19-21 9-Speed A/T)
   Test point 2	Body ground

   Is there 0.1 V or less?

   YES 

   The STRLY2 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM, then recheck. - Refer to:

   PCM Removal and Installation (19-21 9-Speed A/T)

   If DTC P16F6 goes away and the PCM was substituted, replace the original PCM - Refer to:

   PCM Removal and Installation (19-21 9-Speed A/T) .

   NG

   Repair a short to power in the STRLY2 wire between the PCM (A42) and starter cut relay 2.