Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
Some of these service operations affect the SRS airbag system. Read the precautionary
notices concerning the SRS airbag system before servicing.
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Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
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Related Tacoma materials
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
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Rear Differential Lock Solenoid Circuit High (P17C1)
DESCRIPTION
This DTC is output when a malfunction is detected due to a battery short occurring
in the differential lock coil drive circuit of the rear differential.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
P17C1
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Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The certification ECU (smart key ECU assembly) and ECM control the vehicle
engine immobiliser system functions. Engine immobiliser system data and Diagnostic
Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3).
In some cases, a ...