Dodge Journey: Relay, transmission control

DESCRIPTION

Automatic Transmission 41TE
Fig. 366: Locating Transmission Control Relay

  1. - TRANSMISSION CONTROL RELAY
  2. - POWER DISTRIBUTION CENTER

The transmission control relay (1) is located in the Power Distribution Center (PDC) (2), which is located on the left side of the engine compartment between the battery and radiator upper support.

OPERATION

The Transmission Control Relay is supplied fused B+ voltage, energized by the PCM, and is used to supply power to the solenoid pack when the transmission is in normal operating mode. When the relay is "off", no power is supplied to the solenoid pack and the transmission is in "limp-in" mode. After a controller reset (ignition key turned to the "run" position or after cranking engine), the PCM energizes the relay. Prior to this, the PCM verifies that the contacts are open by checking for no voltage at the switched battery terminals. After this is verified, the voltage at the solenoid pack pressure switches is checked. After the relay is energized, the PCM monitors the terminals to verify that the voltage is greater than 3 volts.

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