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Home >> Toyota >> 2021 >> 4Runner TRD Off-Road >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Touch Select 2-4 And High-Low System (VF2CM) - Diagnostic Codes & Circuit Tests) >> Touch Select 2-4 And High-Low System >> DTC P17A9: Transfer Shift Motor Control Circuit Low [08/2019 - ] >> Description

DTC P17A9: Transfer Shift Motor Control Circuit Low [08/2019 - ]: Description

WARNING: This page is about a different variant/trim than selected.

This DTC is output when a short to ground in the transfer shift motor and A.D.D. shift motor drive circuit is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area
P17A9 Transfer Shift Motor Control Circuit Low
  • Diagnosis Condition: Directly after the ignition switch is turned to ON, or while the ignition switch turned to ON (transfer shift motor not operating)
  • Malfunction Status: Short to ground in the transfer shift motor and A.D.D. shift motor drive circuits
  • Malfunction Time: 0.5 seconds or more (after the ignition switch turned to ON, 0.05 seconds or more)
  • Other: 1 trip detection logic
  • Wire harness and connector
  • 4 wheel drive control ECU
  • Transfer shift actuator assembly
  • A.D.D. actuator (differential vacuum actuator assembly)