Kia Optima: Transaxle Control Module (TCM). Description and OperationDescription
Transaxle Control Module (TCM) is the automatic transaxle's brain. The module receives and processes signals from various sensors and implements a wide range of transaxle controls to ensure optimal driving conditions for the driver. TCM is programmed for optimal response to any on-road situation. In the event of a transaxle failure or malfunction, TCM stores the fault information in memory so that the technician may reference the code and quickly repair the transaxle. Functions| • | Monitors the vehicle's operating conditions to determine the optimal gear setting. |
| • | Performs a gear change if the current gear setting differs from the identified optimal gear setting. |
| • | Determines the need for damper clutch (D/C) activation and engages the clutch accordingly. |
| • | Calculates the optimal line pressure level by constantly monitoring the torque level and adjusts the pressure accordingly. |
| • | Diagnoses the automatic transaxle
for faults and failures.
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Components and Components LocationAir bag warning light
The purpose of the air bag warning light in your instrument panel is to alert
you of a potential problem with your air bag - Supplemental Restraint System (SRS).
When the ignition switch is turn ...
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Remove the main crash pad lower
cover (A).
3.
Disconnect the blower resistor
connector ...
Repair procedures
Inspection
[System Inspection]
1.
Disconnect the vapor hose from the throttle body
and connect a vacuum pump to the nipple on the throttle body.
2.
Chec ...