DTC P16E2 (2017 2018 2019 2020)
DTC P16E2 : PGM-FI-ACG LIN Communication Error
- Check for a loose terminal on the alternator (+B terminal). If the alternator +B terminal was loose, DTC P16E2 will be stored.
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P16E2 PGM-FI-ACG LIN Communication Error |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
- 2. Clear the DTC with the HDS, and wait 10 seconds.
- 3. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P16E2 PGM-FI-ACG LIN Communication Error Is DTC P16E2 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 the alternator 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, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016), or How to Troubleshoot the A/T System (2014 2015) .
- DTC check
-1. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P16E5 PGM-FI-DC-DC Converter LIN Communication Error Is DTC P16E5 indicated?
YES
Go to step 3.
NO
Go to step 7.
- Determine possible failure area (LIN/LIN(ACG) line shorted, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Alternator 1P connector - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Alternator 1P connector: disconnected Test point 1 Alternator 1P connector (female terminals) No. 1: Test point 2 Body ground Is there continuity?
YES
Go to step 4.
NO
Go to step 5.
- Shorted wire check (LIN/LIN(ACG) line)
-1. Jump the SCS line with the HDS, and wait more than 1 minute.
- 2. Continue to check for continuity between the alternator 1P connector terminal and body ground, while disconnecting these connectors, one at a time:
- PCM connector B (51P)
- DC-DC converter connector A (3P) (with auto idle stop system)
Does continuity go away when one of the above connectors is disconnected?
YES
The LIN/LIN(ACG) wire is OK. Replace the part that caused an open when it was disconnected. If these parts are OK, replace the alternator .
NO
Repair a short in the LIN/LIN(ACG) wire between the PCM (B50), the alternator, the battery fan motor, and the DC-DC converter.
- Determine possible failure area (alternator, others)
-1. Reconnect the alternator 1P connector.
- 2. Disconnect the following connector.
DC-DC converter connector A (3P) - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode DC-DC converter connector A (3P): disconnected Test point 1 DC-DC converter connector A (3P) (female terminals) No. 1: Test point 2 Body ground Is there continuity?
YES
NO
Go to step 6.
- Open wire check (LIN/LIN(ACG) line)
-1. Jump the SCS line with the HDS, and wait more than 1 minute.
- 2. Disconnect the following connectors.
Alternator 1P connector PCM connector B (51P) - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode DC-DC converter connector A (3P): disconnected Alternator 1P connector: disconnected PCM connector B (51P): disconnected Test point 1 Alternator 1P connector (female terminals) No. 1: Test point 2 PCM connector B (51P) No. 50 - Refer to: PCM Connector for Inputs and Outputs (2017 2018 2019 2020), or PCM Connector for Inputs and Outputs (2014 2015), or PCM Connector for Inputs and Outputs (2016) Is there continuity?
YES
The LIN/LIN(ACG) wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or substitute a known-good PCM - Refer to: PCM Removal and Installation (2014 2015), or PCM Removal and Installation (2016) .
NO
Repair an open in the LIN/LIN(ACG) wire between the PCM (B50) and the alternator.
- Open wire check (LIN/LIN(ACG) line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS, and wait more than 1 minute.
- 3. Disconnect the following connectors.
Alternator 1P connector PCM connector B (51P) - 4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Alternator 1P connector: disconnected PCM connector B (51P): disconnected Test point 1 Alternator 1P connector (female terminals) No. 1: Test point 2 PCM connector B (51P) No. 50 - Refer to: PCM Connector for Inputs and Outputs (2014 2015), or PCM Connector for Inputs and Outputs (2016), or PCM Connector for Inputs and Outputs (2017 2018 2019 2020) Is there continuity?
YES
The LIN/LIN(ACG) wire is OK. Replace the alternator .
NO
Repair an open in the LIN/LIN(ACG) wire between the PCM (B50) and the alternator.