• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Run and Crank/On and Start Power Circuit | B1453 06 | -- | B1453 01 | -- |
The Run and Crank/On and Start Power signal connects the Serial Data Gateway Module (SDGM) along with numerous other modules to the vehicle 12-volt system through a fused relay in the fuse block - underhood. This relay is closed by the Body Control Module (BCM) based on the key being in either the Run or Crank position.
Ignition voltage is between 9-16 volts.
Ignition is in ACC position.
Ignition is in RUN position.
Run and Crank/On and Start Power Circuit is more than 2.5 volts.
Run and Crank/On and Start Power Circuit is less than 2.5 volts.
DTC B1453 is a Type C DTC.
DTC B1453 is a Type C DTC.
Run and Crank/On and Start Power Circuit is less than 2.5 volts.
Run and Crank/On and Start Power Circuit is more than 2.5 volts.
Many controllers such as the power inverter module (PIM), transmission control module (TCM), and inflatable restraint sensing and diagnostic module (SDM) will set a DTC for a problem with the Run and Crank/On and Start Power Voltage circuit. Confirm that they do not have DTCs before only investigating the SDGM.
Drive Motor Generator Control Module Description and Operation
Control Module References for scan tool information
⇒ | If the test lamp illuminates, test the signal circuit terminal 20 for a short to voltage. |
⇒ | If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDGM replacement, setup, and programming