PGM-FI System

Advanced Diagnostics - DTC U1207: IMA-CAN Malfunction (Powertrain Control Module (PCM)-A/C Compressor Driver) (PGM-FI System)






General Description
The integrated motor assist-controller area network (IMA-CAN) uses two signal lines, IMACANH and IMACANL, and it receives and transmits multiple signals simultaneously to/from multiple control modules. When the information is not sent from the A/C compressor driver via the IMA-CAN and this condition continues for a specified time or when the information sent from the A/C compressor driver is abnormal and this condition continues for a specified cycle, the powertrain control module (PCM) detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status






Enable Conditions






Malfunction Threshold
One of these conditions must be met:
- The information is not sent via the IMA-CAN for at least 1 second.
- The information sent from the A/C compressor driver is abnormal at least 20 times.

Diagnosis Details

Conditions for setting the DTC
When a malfunction is detected, a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC
The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the battery.