DTC P1D01: All CAN Malfunction (Battery Condition Monitor Module - Traction Motor Control Module) (195)
General Description
The battery control processor is in the battery condition monitor module. The controller area network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using two signal lines (F-CAN A_H and F-CAN A_L) and (EPP-CAN_H and EPP-CAN_L). The F-CAN and the EPP-CAN sends same data. If the F-CAN or the EPP-CAN does not transmit/receive data, the normal signal line can transmit/receive data. If the F-CAN and the EPP-CAN does not transmit/receive data, the battery condition monitor module cannot run normally. The battery condition monitor module detects no signal, received data is abnormal or BUS-OFF is received via the F-CAN and EPP-CAN, the battery condition monitor module detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type, OBD Status
| Execution | Continuous |
| Sequence | None |
| Duration | - |
| DTC Type | One drive cycle, MIL on, POWER SYSTEM indicator on |
| OBD Status | PASSED/FAILED/NOT COMPLETED (STILL TESTING) |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| Elapsed time since the 12 volt battery voltage reaches to a specified value after the vehicle condition is turned to the ON mode | 3 seconds | - |
| 12 volt battery voltage | 10.2 V | - |
Malfunction Threshold
The EPP-CAN has no signal and receives data that is abnormal (DTC U1205) or detects BUS-OFF (DTC U0038), and F-CAN has no signal and received data that is abnormal (DTC U0110) or detects BUS-OFF (DTC U0029).
Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- F-CAN circuit F-CAN A_H line open
- F-CAN circuit F-CAN A_L line open
- F-CAN circuit F-CAN A_H line short to ground
- F-CAN circuit F-CAN A_L line short to ground
- EPP-CAN circuit EPP-CAN_H line open
- EPP-CAN circuit EPP-CAN_L line open
- EPP-CAN circuit EPP-CAN_H short to ground
- EPP-CAN circuit EPP-CAN_L short to ground
- Battery condition monitor module IGHLD line open
- Unit communicating on F-CAN internal failure
- Unit communicating on EPP-CAN internal failure
- IGHLD1 relay circuit stuck off
- Motor control module (traction) failure
- Battery condition monitor module failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the battery condition monitor module memory.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.