DTC P16E5 (2017 2018 2019 2020 With Auto Idle Stop System)
DTC P16E5 : LIN Communication Error (PCM-DC-DC Converter)
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P16E5 LIN Communication Error (PCM-DC-DC Converter) |
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 P16E5 LIN Communication Error (PCM-DC-DC Converter) Is DTC P16E5 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 DC-DC converter 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 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), or How to Troubleshoot the Fuel and Emissions Systems .
- DTC check
-1. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P16E2 PGM-FI-ACG LIN Communication Error DTC (PGM-FI)
Is DTC P16E2 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.
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
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 DC-DC converter connector A (3P) terminal No. 1 and body ground, while disconnecting these connectors, one at a time:
- PCM connector B (51P)
- Alternator 1P connector
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 DC-DC converter .
NO
Repair a short in the LIN/LIN(ACG) wire between the PCM (B50), the alternator, and the DC-DC converter.
- Determine possible failure area (DC-DC converter, others)
-1. Reconnect DC-DC converter connector A (3P).
- 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
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.
PCM connector B (51P) DC-DC converter connector A (3P) - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Alternator 1P connector: disconnected PCM connector B (51P): disconnected DC-DC converter connector A (3P): disconnected Test point 1 DC-DC converter connector A (3P) (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 (2016), or PCM Removal and Installation (2014 2015) .
NO
Repair an open in the LIN/LIN(ACG) wire between the PCM (B50) and the DC-DC converter.
- Fuse check
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Check the following fuse.
Fuse No. D24 (7.5 A) Location Driver's under-dash fuse/relay box Is the fuse OK?
YES
Go to step 8.
NO
Repair a short in the IG1 ACG wire between the DC-DC converter and the No. D24 (7.5 A) fuse. Also replace the No. D24 (7.5 A) fuse.
- Open wire check (IG1 ACG line)
-1. Disconnect the following connector.
DC-DC converter connector A (3P) - 2. Turn the vehicle to the ON mode.
- 3. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode DC-DC converter connector A (3P): disconnected Test point 1 DC-DC converter connector A (3P) (female terminals) No. 3: Test point 2 Body ground Is there battery voltage?
YES
Go to step 9.
NO
Repair an open in the IG1 ACG wire between the DC-DC converter and the No. D24 (7.5 A) fuse in the driver's under-dash fuse/relay box.
- 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 connector.
PCM connector B (51P) - 4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode DC-DC converter connector A (3P): disconnected PCM connector B (51P): disconnected Test point 1 DC-DC converter connector A (3P) (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. Replace the DC-DC converter .
NO
Repair an open in the LIN/LIN(ACG) wire between the PCM (B50) and the DC-DC converter.