Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Rear Differential Lock Control SW Stuck ON (P17CC)

DESCRIPTION

This DTC is output when a malfunction of the differential lock switch is detected.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

P17CC

Rear Differential Lock Control SW Stuck ON

  • Diagnosis Condition: Directly after the ignition switch is turned to ON, or when the ignition switch is ON
  • Malfunction Status: Differential lock switch stuck ON
  • Malfunction Time: 0.3 seconds or more when the ignition switch is turned to ON, or 60 seconds or more with the ignition switch ON
  • Other: 1 trip detection logic
  • Wire harness and connector
  • 4 wheel drive control ECU
  • Differential lock switch

WIRING DIAGRAM

PROCEDURE

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - DIFFERENTIAL LOCK SWITCH)

(a) Disconnect the F13 4 wheel drive control ECU connector.

(b) Disconnect the D5 differential lock switch connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

F13-15 (R) or D5-6 (B) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

INSPECT ROOF CONSOLE BOX ASSEMBLY

(a) Remove the roof console box assembly.

  • for Double Cab: (See page ). for Access Cab: (See page ).
  • for Access Cab: (See page ). ).
Text in Illustration

*a

Component without harness connected

(Roof Console Box Assembly)

-

-

(b) Measure the resistance according the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

R44-6 (B) - 6 (B)

Always

Below 1 Ω

R44-12 (GND)- 3 (E)

Always

Below 1 Ω

Result

Result

Proceed to

OK

A

NG (for Double Cab)

B

NG (for Access Cab)

C

B

REPLACE ROOF CONSOLE BOX ASSEMBLY

C

REPLACE ROOF CONSOLE BOX ASSEMBLY

A

3.

INSPECT DIFFERENTIAL LOCK SWITCH

(a) Disconnect the D5 differential lock switch connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

6 - 3

Switch not pressed

10 kΩ or higher

Text in Illustration

*a

Component without harness connected

(Differential Lock Switch)

OK

REPLACE 4 WHEEL DRIVE CONTROL ECU

NG

REPLACE DIFFERENTIAL LOCK SWITCH

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. D ...

Rear Differential Lock Position SW Stuck OFF (P17BB)
DESCRIPTION This DTC is output when an OFF malfunction of the differential lock indicator switch is detected. DTC No. Detection Item DTC Detection Condition ...

Other materials:

Front Passenger Side Power Window Auto Up / Down Function does not Operate with Front Passenger Side Power Window Switch
DESCRIPTION If the manual up/down function can be performed but the auto up/down function cannot, the fail-safe mode may be functioning. If the power window initialization (See page ) has not been performed, the auto up/down function will not operate. WIRING DIAGRAM CAUTION / NOTICE / HIN ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT CURTAIN SHIELD AIRBAG ASSEMBLY (for Vehicle not Involved in Collision) (a) Perform a Diagnostic System Check (See page ). (b) With the curtain shield airbag installed on the vehicle, perform a visual check. If any of the defects mention ...

Accelerator Pedal
Components COMPONENTS ILLUSTRATION On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT ACCELERATOR PEDAL SENSOR ASSEMBLY (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / En ...

© 2011-2020 Copyright www.ttguide.net