DTC P1597 (65)

DTC P1597  : HV Battery Current Sensor 1 Circuit Range/Performance

NOTE:  Before you troubleshoot, review the general troubleshooting information .

DTC (Electric Powertrain)

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. Turn the vehicle to the READY TO DRIVE mode.

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P1597 HV Battery Current Sensor 1 Circuit Range/Performance

   Is DTC P1597 indicated?

   YES 

   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 (SGISOC line)

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

   -2. Remove the service plug and the IPU cover .

   -3. Disconnect the following connectors.

   Battery condition monitor module connector E (32P)

   Battery current sensor 4P connector

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

   Test condition	Vehicle OFF (LOCK) mode
   	Battery condition monitor module connector E (32P): disconnected
   	Battery current sensor 4P connector: disconnected
   Test point 1	Battery condition monitor module connector E (32P) No. 29
   Test point 2	Battery current sensor 4P connector (female terminals) No. 4:

   Courtesy of HONDA, U.S.A., INC.

   Is there 1.0 Ω or less?

   YES 

   Go to step 3

   NO 

   Repair an open in the SGISOC wire between the battery current sensor and the battery condition monitor module (E29).

3. Battery current sensor check

   -1. Substitute a known-good battery current sensor .

   -2. All removed parts install to the IPU, then install the IPU .

   -3. Clear the DTC with the HDS.

   -4. Turn the vehicle to the OFF (LOCK) mode.

   -5. Turn the vehicle to the READY TO DRIVE mode.

   -6. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P1597 HV Battery Current Sensor 1 Circuit Range/Performance

   Is DTC P1597 indicated?

   YES 

   Replace the battery condition monitor module .

   NO 

   Replace the original battery current sensor .