IMA System

Special Tools
Service Precautions
- IMA System
- Disconnecting the motor power cable connector from the motor stator
- Turning Off and On Power to the High Voltage Circuit
General Troubleshooting Information
- Intermittent Failures
- Opens and Shorts
- How to Use the HDS (Honda Diagnostic System) to Check for DTCs
  - If the IMA system indicator stays on
- DTC Clear
- How to End a Troubleshooting Session (required after any troubleshooting)
- IMA Motor Rotor Position Calibration
- Troubleshooting Circuits at the MCM Connectors
- Substituting the MCM
- OBD Status
DTC Troubleshooting Index
Symptom Troubleshooting Index
System Description
- MCM Inputs and Outputs at Connector A (31P)
- MCM Inputs and Outputs at Connector B (24P)
- MCM Inputs and Outputs at Connector C (22P)
- MCM Inputs and Outputs at Connector E (31P)
- IMA System
- Operating Conditions
  - Notes
  - When the battery module charge is at or above a specific value
  - When the battery module charge is at or below a specific value
  - When the engine cannot be started with the IMA motor
- Auto Idle Stop System
  - Notes
  - Auto Stop Indicator
- Auto Idle Stop Conditions
- Engine Restart Conditions
- ECT/IAT Auto idle Stop Conditions
- Brake Booster Vacuum Auto Idle Stop Conditions
- SOC/Battery Temperature Auto idle Stop Conditions
- In-Vehicle Humidity Auto Idle Stop Conditions
- Climate Control Unit Auto Idle Stop Conditions
- Intelligent Power Unit (IPU)
- Power Control Unit (PCU)
- Motor Control Module (MCM)
- Motor Power Inverter (MPI) Module
- DC-DC Converter
- IMA Motor
- Battery Module
- Junction Board
  - Notes
  - Battery Module Switch
  - Battery Current Sensor
- IPU Module Fan
- Power Cables
Circuit Diagram
Component Location Index
DTC Troubleshooting
- DTC P0562 (15): Motor Control Module (MCM) Power Source Circuit Unexpected Voltage; DTC P0562 (94): Motor Control Module (MCM) System Low Voltage
- DTC P0602 (91, 92): Motor Control Module (MCM) Programming Error
- DTC P062F (60, 61): Motor Control Module (MCM) Internal Circuit EEPROM Error
- DTC P06B1: Battery Current Sensor Circuit Malfunction
- DTC P0A1B: Motor Control Module (MCM) Internal Circuit Malfunction
- DTC P0A27: High Voltage Contactor/Bypass Contactor Stays Activated
- DTC P0A3C: Motor Power Inverter (MPI) Module Overheating
- DTC P0A3F: Motor Rotor Position Sensor Circuit Malfunction
- DTC P0A5E: U Phase Motor Current Sensor Circuit Low Voltage
- DTC P0A5F: U Phase Motor Current Sensor Circuit High Voltage
- DTC P0A61: V Phase Motor Current Sensor Circuit Low Voltage
- DTC P0A62: V Phase Motor Current Sensor Circuit High Voltage
- DTC P0A64: W Phase Motor Current Sensor Circuit Low Voltage
- DTC P0A65: W Phase Motor Current Sensor Circuit High Voltage
- DTC P0A78: Motor Power Inverter (MPI) Module Internal Circuit Malfunction
- DTC P0A7E: Battery Module Overheating
- DTC P0A7F: Battery Module Deterioration
- DTC P0A94: DC-DC Converter Output Low Voltage
- DTC P0A9D: Battery Module Temperature Sensor 1 Circuit Low Voltage
- DTC P0A9E: Battery Module Temperature Sensor 1 Circuit High Voltage
- DTC P0AA6: High Voltage Circuit Isolation Problem
- DTC P0AA7: Motor Control Module (MCM) Internal Circuit Malfunction
- DTC P0AC0: Battery Current Sensor 1 Circuit Malfunction
- DTC P0AC1: Battery Current Sensor 1 Circuit Low Voltage
- DTC P0AC2: Battery Current Sensor 1 Circuit High Voltage
- DTC P0AC7: Battery Module Temperature Sensor 2 Circuit Low Voltage
- DTC P0AC8: Battery Module Temperature Sensor 2 Circuit High Voltage
- DTC P0ACC: Battery Module Temperature Sensor 3 Circuit Low Voltage
- DTC P0ACD: Battery Module Temperature Sensor 3 Circuit High Voltage
- DTC P0AE1: Bypass Contactor Malfunction
- DTC P0AEE: Motor Power Inverter (MPI) Module Temperature Sensor Range/Performance Problem
- DTC P0B0F: Battery Current Sensor 2 Circuit Malfunction
- DTC P0B10: Battery Current Sensor 2 Circuit Low Voltage
- DTC P0B11: Battery Current Sensor 2 Circuit High Voltage
- DTC P0BE6: U Phase Motor Current Sensor Circuit Malfunction
- DTC P0BEA: V Phase Motor Current Sensor Circuit Malfunction
- DTC P0BEE: W Phase Motor Current Sensor Circuit Malfunction
- DTC P0BFD: Motor Current Sensor Circuit Malfunction
- DTC P1437: Motor Power Inverter (MPI) Module Short Circuit
- DTC P1440: Motor Power Inverter (MPI) module Output Circuit Malfunction
- DTC P1446: Battery Module Individual Voltage Input Deviation
- DTC P1448: Intelligent Power Unit (IPU) Module Fan Problem
- DTC P1570: Battery Module Individual Voltage Problem
- DTC P1574: Battery Module Temperature Signal Circuit Malfunction
- DTC P1575: Motor Power Inverter (MPI) Module Voltage Malfunction
- DTC P1586: Battery Current Sensor Signal Malfunction
- DTC P15A5: Motor Current Sensor Circuit Malfunction
- DTC P15AA: Motor Rotor Position Not Learned
- DTC P15C4: Auto Idle Stop System Malfunction
- DTC P1634: Motor Power Inverter (MPI) Module Signal Circuit Malfunction
- DTC P1673: Motor Control Module (MCM) Relay Stays Activated
- DTC P16C3: DC-DC Converter Temperature Sensor Circuit Malfunction
- DTC U0029 (107, 108): F-CAN Malfunction (BUS-OFF (Motor Control Module (MCM)))
- DTC U0038: IMA-CAN Malfunction (BUS-OFF (Motor Control Module (MCM))); DTC U1204: IMA-CAN Malfunction (Powertrain Control Module (PCM) - Motor Control Module (MCM))
- DTC U0100 (102, 103): F-CAN Malfunction (Powertrain Control Module (PCM)-Motor Control Module (MCM))
- DTC U0155: F-CAN Malfunction (Gauge Control Module-Motor Control Module (MCM))
- DTC U0311: MCM and BCM Program Version Mismatch
- DTC U0312: BCM, MCM and PGM-FI System Program Version Mismatch
- DTC U1220: DC-DC Converter Lost Communication with Motor Control Module (MCM)
- DTC U1221: Motor Control Module (MCM) Lost Communication with DC-DC Converter
IMA System Indicator Circuit Troubleshooting
- IMA system indicator stays on, no DTCs set
- IMA system indicator never comes on, no DTCs set
Charging System Indicator Circuit Troubleshooting
- Charging system indicator stays on, no DTCs set
- Charging system indicator blinks, no DTCs set
- Charging system indicator never comes on, no DTCs set
DLC Circuit Troubleshooting
Auto Idle Stop System Inspection
Auto Idle Stop System Troubleshooting
IPU Cover Removal/Installation
Motor Control Module (MCM) Update
- Notes
- IMA Motor/IMA Battery Update
Motor Control Module (MCM) Removal/Installation
DC-DC Converter Removal/Installation
Motor Power Inverter (MPI) Module Removal/Installation
IPU Case Removal/Installation
Battery Module Removal/Installation
IPU Module Fan Replacement
IPU Module Air Duct Removal/Installation
IMA Motor Power Cable Removal/Installation
IMA Motor Rotor Removal/Installation
Drain Cover Removal/Installation
IMA Motor Housing Removal/Installation
IMA Motor Rotor Position Sensor Removal/Installation
Idle Stop Switch Signal Circuit Troubleshooting
Idle Stop Switch Replacement
Idle Stop Switch Adjustment