Sheriff of Mayberry
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Does a 98 Corolla have a transmission controller or a body control module??
Can't say I know about the Corolla, but for the Camrys and Avalons in this vintage, the ECU also controls the transmission. Other, separate modules include:
- Cruise control
- Radiator fan control
- Integration relay (controls auto-headlights, courtesy lights, key buzzer, door-open light/chime, etc.)
On some later years (2000-ish), the security system functions (smart keys) are integrated into the ECU.
Again, all that is speaking about Camrys and Avalons, so the Corolla may be different.
2015 RAV4 Limited, AWD, tech pkg, Barcelona red metallic, 66k miles
1996 Avalon XLS, ABS brakes, super white II, acquired w/ 139k, now at 400k
1992 Camry LE, V6 (3VZ-FE), ABS brakes, dark emerald pearl, owned since new. Replaced HGs @332k, totaled at 384k miles