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| • | 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. |
The 14 V power module, also called the accessory DC power control module, constantly monitors system temperature to protect against overheat conditions. The module also monitors the function of the temperature sensors. These sensors are internal to the 14 V power module and are not serviced separately from the control module.
The vehicle is ON.
DTC P1A90, P1A91 or P1A92: the sensor signal is out of range for more than 5 seconds.
DTCs P1A90, P1A91 or P1A92 are Type C DTCs.
DTCs P1A90, P1A91 or P1A92 are Type C DTCs.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
If the DTC is set, program the K1 14V power module. If the DTC resets, replace the K1 14 V power module.
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for Accessory DC Power Control Module, also called the 14 V power module, replacement, programming and set-up.
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