DTC P158D (115)

DTC P158D  : HV Battery Current Sensor 1 Circuit Low

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. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P158D HV Battery Current Sensor 1 Circuit Low

   Is DTC P158D indicated?

   YES 

   The failure is duplicated. 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. DTC check

   -1. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P06B1 HV Battery Current Sensor Power Supply Circuit Low

   Is DTC P06B1 indicated?

   YES 

   Go to the DTC P06B1 troubleshooting .

   NO 

   Go to step 3.

3. Determine possible failure area (VCCISOC line, others)

   -1. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P158D HV Battery Current Sensor 1 Circuit Low
   P158E HV Battery Current Sensor 2 Circuit Low

   Are DTC P158D and P158E indicated at the same time?

   YES 

   Go to step 4.

   NO 

   Go to step 5.

4. Open wire check (VCCISOC line)

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

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

   -3. Remove the IPU and the IPU case .

   -4. Disconnect the following connectors.

   Battery condition monitor module connector E (32P)

   Battery current sensor 4P connector

   -5. 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. 28
   Test point 2	Battery current sensor 4P connector (female terminals) No. 1:

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

   Is there 1.0 Ω or less?

   YES 

   Substitute a known-good battery current sensor , then recheck. If DTC P158D is still indicated, replace the battery condition monitor module .

   NO 

   Repair an open in the VCCISOC wire between the battery current sensor and the battery condition monitor module (E28).

5. Determine possible failure area (short in ISOC circuit, others)

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

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

   -3. Disconnect the following connector.

   Battery condition monitor module connector E (32P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Battery condition monitor module connector E (32P): disconnected
   Test point 1	Battery condition monitor module connector E (32P) No. 26
   Test point 2	Body ground

   Is there continuity?

   YES 

   Go to step 6.

   NO 

   Go to step 7.

6. Shorted wire check (ISOC line)

   -1. Remove the IPU and the IPU case .

   -2. Disconnect the following connector.

   Battery current sensor 4P connector

   -3. 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. 26
   Test point 2	Body ground

   Is there 1 MΩ or more?

   YES 

   The ISOC wire is OK. Substitute a known-good battery current sensor , then recheck. If DTC P158D is still indicated, replace the battery condition monitor module .

   NO 

   Repair a short in the ISOC wire between the battery current sensor and the battery condition monitor module (E26).

7. Battery condition monitor module internal circuit (ISOC) check

   -1. Reconnect the following connector.

   Battery condition monitor module connector E (32P)

   -2. Connect terminals A and B with a jumper wire.

   Terminal A	Battery condition monitor module connector E (32P) No. 28
   Terminal B	Battery condition monitor module connector E (32P) No. 26

   -3. Do the 12 volt battery terminal reconnection procedure .

   -4. Turn the vehicle to the ON mode.

   -5. Clear the DTC with the HDS.

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P158F HV Battery Current Sensor 1 Circuit High

   Is DTC P158F indicated?

   YES 

   Go to step 8.

   NO 

   Replace the battery condition monitor module .

8. Open wire check (ISOC line)

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

   -2. Do the 12 volt battery terminal disconnection procedure .

   -3. Remove the IPU and the IPU case .

   -4. Disconnect the following connectors.

   Battery condition monitor module connector E (32P)

   Battery current sensor 4P connector

   -5. 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. 26
   Test point 2	Battery current sensor 4P connector (female terminals) No. 2:

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

   Is there 1.0 Ω or less?

   YES 

   Replace the battery current sensor .

   NO 

   Repair an open in the ISOC wire between the battery current sensor and the battery condition monitor module (E26).