Manufacturer Code Charts: 117
DTC Troubleshooting: P0B10 (117)
DTC P0B10:
Battery Current Sensor 2 Circuit Low Voltage
NOTE:
- Before you troubleshoot, record all freeze data, and any on-board snapshot, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
- If the DTC cannot be cleared, do the troubleshooting for DTC U1204.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0B10 indicated?
YES -
Go to step 4.
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MCM and the battery current sensor.�
4. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P06B1 indicated?
YES -
Do the troubleshooting for DTC P06B1 P06B1.
NO -
Go to step 5.
5. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0AC1 indicated?
YES -
Go to step 6.
NO -
Go to step 13.
6. Turn the ignition switch to LOCK (0).
7. Turn the battery module switch OFF.
8. Remove the IPU case IPU Case Removal/Installation.
9. Remove the PCU lid, the PCU busplate, and the PCU cover Service and Repair.
10. Disconnect MCM connector B (24P).
11. Disconnect the battery current sensor 4P connector (A).
12. Check for continuity between battery current sensor 4P connector terminal No. 1 and MCM connector terminal B17.
Is there continuity?
YES -
Replace the battery module Service and Repair, then go to step 32.
NO -
Repair an open in the wire between the battery current sensor and the MCM (B17), then go to step 32.
13. Turn the ignition switch to LOCK (0).
14. Turn the battery module switch OFF.
15. Remove the IPU cover IPU Cover Removal/Installation.
16. Remove the PCU lid, the PCU busplate, and the PCU cover Service and Repair.
17. Disconnect MCM connector B (24P).
18. Check for continuity between body ground and MCM connector terminal B12.
Is there continuity?
YES -
Go to step 19.
NO -
Go to step 22.
19. Remove the IPU case IPU Case Removal/Installation.
20. Disconnect the battery current sensor 4P connector (A).
21. Check for continuity between battery current sensor 4P connector terminal No. 3 and body ground.
Is there continuity?
YES -
Repair a short in the wire between the battery current sensor and the MCM (B12), then go to step 32.
NO -
Replace the battery module Service and Repair, then go to step 32.
22. Reconnect MCM connector B (24P).
23. Connect MCM connector terminals B12 and B17 with a jumper wire.
24. Turn the ignition switch to ON (II).
25. Clear the DTC with the HDS.
26. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0B11 indicated?
YES -
Go to step 27.
NO -
Go to step 39.
27. Turn the ignition switch to LOCK (0).
28. Remove the IPU case IPU Case Removal/Installation.
29. Disconnect MCM connector B (24P).
30. Disconnect the battery current sensor 4P connector (A).
31. Check for continuity between battery current sensor 4P connector terminal No. 3 and MCM connector terminal B12.
Is there continuity?
YES -
Replace the battery module Service and Repair, then go to step 32.
NO -
Repair an open in the wire between the battery current sensor and the MCM (B12), then go to step 32.
32. Reconnect all connectors.
33. Reinstall the IPU case IPU Case Removal/Installation.
34. Reinstall the PCU cover, the PCU busplate, and the PCU lid Service and Repair.
35. Reinstall the IPU cover IPU Cover Removal/Installation, then turn the battery module switch ON.
36. Turn the ignition switch to ON (II).
37. Clear the DTC with the HDS.
38. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0B10 indicated?
YES -
Check for poor connections or loose terminals at the MCM and the battery current sensor, then go to step 1.
NO -
Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.�
39. Reconnect all connectors.
40. Reinstall the PCU cover, the PCU busplate, and the PCU lid Service and Repair.
41. Reinstall the IPU cover IPU Cover Removal/Installation, then turn the battery module switch ON.
42. Update the MCM if it does not have the latest software Testing and Inspection, or substitute a known-good MCM.
43. Turn the ignition switch to ON (II).
44. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0B10 indicated?
YES -
Check for poor connections or loose terminals at the MCM and the battery current sensor. If the MCM was updated, substitute a known-good MCM, then recheck. If the MCM was substituted, go to step 1.
NO -
If the MCM was updated, troubleshooting is complete. If the MCM was substituted, replace the original MCM Service and Repair. If any other Pending or Confirmed DTCs were indicated, go to the indicated DTC's troubleshooting.�