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Home >> Honda >> 2003 >> Insight Standard >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> IMA System >> DTC Troubleshooting >> DTC P1437 (41): Motor Driver Module (MDM) Short Circuit; DTC P1439 (41): Motor Driver Module (MDM) Short Circuit
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DTC P1437 (41): Motor Driver Module (MDM) Short Circuit; DTC P1439 (41): Motor Driver Module (MDM) Short Circuit

NOTE:
  • Information marked with an asterisk (*) applies to 2005-2006 models.
  • Information marked with double asterisk (**) applies to 2000-2004 models.
  1. Turn the ignition switch ON (II), and watch the IMA system indicator.

    Is DTC P1430 (40)** (P1439 (40)*) indicated? 

    1. YES  - Do the troubleshooting for DTC P1430 (40)**(P1439 (40)*) (see DTC P1430 (40): MOTOR DRIVER MODULE (MDM) SHORT CIRCUIT SENSOR PROBLEM; DTC P1439 (40): MOTOR DRIVER MODULE (MDM) SHORT CIRCUIT SENSOR PROBLEM ), and recheck.
    2. NO  - Go to step 2.
  2. Reset the MCM (see HOW TO RESET THE MCM ).
  3. Start the engine.

    Is DTC P1437 (41)** (P1439 (41)*) indicated? 

    1. YES  - Replace the MPI module (see POWER CONTROL UNIT (PCU) DISASSEMBLY/REASSEMBLY ).
    2. NO  - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the voltage converter module and at the MCM.
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