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Home >> Toyota >> 2004 >> Tundra Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 471 (Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics)) >> Abs With EBD & BA & TRAC & VSC System >> Circuit Inspection >> DTC C1258/58: Open Circuit in 2-4 Signal Change Circuit >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

This circuit determines if the transfer is in 2WD or 4WD mode and inputs to the master cylinder solenoid (skid control ECU). In 2WD mode, TRAC is activated; in 4WD mode, A-TRAC is activated.

Fig 1: DTC - C1258/58 Trouble Detection Chart
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