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Toyota Tacoma (2015-2018) Service Manual / Steering Column / Steering Lock System

Toyota Tacoma (2015-2018) Service Manual: Steering Lock System

  • Precaution
  • Parts Location
  • System Description
  • System Diagram
  • How To Proceed With Troubleshooting
  • Problem Symptoms Table
  • Diagnosis System
  • Dtc Check / Clear
  • Terminals Of Ecu
  • Data List / Active Test
  • Diagnostic Trouble Code Chart
  • Open / Short in Steering Lock ECU (B2781)
  • Power Source Control ECU Malfunction (B2782)
  • IG2 Signal Malfunction (B2788)
  • Unable to Lock Steering Wheel
  • Unable to Unlock Steering Wheel (Engine cannot Start)
Reassembly
REASSEMBLY PROCEDURE 1. INSTALL UN-LOCK WARNING SWITCH ASSEMBLY (w/o Smart Key System) (a) Engage the 2 claws to install the un-lock warning switch assembly to the upper steering column bracket a ...

Precaution
PRECAUTION 1. PRECAUTIONS WHEN CHECKING FOR DTCS (a) When the cable is disconnected from the negative (-) battery terminal, the DTCs stored in the steering lock ECU (steering lock actuator or UPR ...

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Inspection
INSPECTION PROCEDURE 1. INSPECT BRAKE DRUM INSIDE DIAMETER (a) Using a brake drum gauge or equivalent, measure the inside diameter of the drum. Standard inside diameter: 254 mm (10.00 in.) Maximum inside diameter: 256 mm (10.08 in.) If the inside diameter is greater than the maximum, r ...

Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default) ...

Diagnosis System
DIAGNOSIS SYSTEM 1. CHECK DLC3 (a) The vehicle ECUs use ISO 15765-4 communication protocol. The terminal arrangement of the DLC3 complies with ISO 15031-3 and matches the ISO 15765-4 format. Terminals No. (Symbols) Terminal Description Condition Spe ...

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