Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Fail-safe Chart

FAIL-SAFE CHART

1. FAIL-SAFE OPERATION AND DEACTIVATION CONDITION

DIFFERENTIAL SYSTEM (w/ Differential Lock)

DTC No.

Fail-safe Operation

Fail-safe Deactivation Condition

U0122

All switching prohibited

When rear differential is locked, rear differential switches to free

CAN communication signal from skid control ECU is received and ignition switch is turned from off to ON

U0416

for 4WD:

Switching from 2WD to H4 and rear differential free to locked prohibited When rear differential is locked, rear differential switches to free

for 2WD:

Switching from rear differential free to locked prohibited

When rear differential is locked, rear differential switches to free

Wheel speed sensor malfunction signals from skid control ECU return to normal and ignition switch is turned from off to ON

P163B

for 4WD:

Switching from 2WD to H4 and rear differential free to locked prohibited When rear differential is locked, rear differential switches to free

for 2WD:

Switching from rear differential free to locked prohibited

When rear differential is locked, rear differential switches to free

4 wheel drive control ECU internal circuit returns to normal and ignition switch is turned from off to ON

P17BB

Switching from rear differential free to locked prohibited

When rear differential is locked, rear differential switches to free

Differential lock indicator switch signal returns to normal and ignition switch is turned from off to ON

P17BC

Switching from rear differential free to locked prohibited

When rear differential is locked, rear differential switches to free

Differential lock indicator switch signal returns to normal and ignition switch is turned from off to ON

P17C0

Switching from rear differential free to locked prohibited

When rear differential is locked, rear differential switches to free

Differential lock coil drive circuit of rear differential recovers from ground short and ignition switch is turned from off to ON

P17C1

Switching from rear differential free to locked prohibited

When rear differential is locked, rear differential switches to free

Differential lock coil drive circuit of rear differential recovers from battery short and ignition switch is turned from off to ON

P17CC

Switching from rear differential free to locked prohibited

When rear differential is locked, rear differential switches to free

Differential lock switch signal returns to normal and ignition switch is turned from off to ON

Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK DTC (a) Check the DTCs. (1) Turn the ignition switch off. (2) Connect the Techstream to the DLC3. (3) Turn the ignition switch to ON. (4) Turn the Techstream on. (5) ...

Freeze Frame Data
FREEZE FRAME DATA 1. FREEZE FRAME DATA (a) When a DTC is stored, the 4 wheel drive control ECU stores the current vehicle state as Freeze Frame Data. HINT: Freeze Frame Data at the time a DTC is ...

Other materials:

Components
COMPONENTS ILLUSTRATION ILLUSTRATION ILLUSTRATION *1 CAMSHAFT *2 CAMSHAFT BEARING CAP *3 CAMSHAFT HOUSING SUB-ASSEMBLY RH *4 CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 1) ...

Customize Parameters
CUSTOMIZE PARAMETERS PROCEDURE 1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings before cus ...

Removal
REMOVAL PROCEDURE 1. REMOVE AIR CONDITIONING CONTROL ASSEMBLY (for Automatic Air Conditioning System) Click here 2. REMOVE AIR CONDITIONING CONTROL ASSEMBLY (for Manual Air Conditioning System) Click here 3. REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY Click here 4. REMOVE INSTR ...

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