Toyota Sequoia (2005). Manual - part 435

I27699

Body ECU Wire Harness View:

B7

DCTY

–

DIAGNOSTICS

POWER SEAT CONTROL SYSTEM (w/ Driving Position 
Memory)

DI–1535

1729

3

Check harness and connector (Body ECU – door courtesy light switch assy).

PREPARATION:
(a)

Disconnect the B7 body ECU connector.

(b)

Reinstall the courtesy light switch assy.

(c)

Reconnect the courtesy light switch assy connector.

CHECK:
Measure the resistance of the wire harness side connectors.
OK:

Tester Connection 

(Symbol)

Condition

Specified Condition

B7–12 (DCTY) – 

Body ground

Courtesy light switch

pushed 

→

 free

10 k

Ω

 or higher

→

 Below 1 

Ω

NG

Repair or replace harness or connector.

OK

Proceed to next circuit inspection shown in
problem symptoms table (See page 

DI–1508

).

DIDEX–01

DI–1536

–

DIAGNOSTICS

CRUISE CONTROL SYSTEM

1730

CRUISE CONTROL SYSTEM

PRECAUTION

NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.

System Name

See Page

Back Door Power Window Control System

BE–77

DI26R–41

Customer Problem Analysis

Check and Clear DTC

Vehicle Brought to Workshop

Problem Symptom Confirmation

Symptom Simulation

Symptom does not occur

DTC Check

Normal system code

DTC Chart

Problem Symptoms Table

Circuit Inspection

Input Signal Check

Parts Inspection

Identification of Problem

Repair

Confirmation Test

End

Items inside

are titles of pages in this

manual with the page number indicated in the
bottom portion. See the indicated pages for
detailed explanations.

1

2

3

4

5

6

7

8

9

10

Step 2, 5, 8, 10: Diagnostic steps permitting use of

the hand–held tester.

P. 

DI–1538

P. 

DI–1545

P. 

DI–1545

P. 

DI–1549

P. 

IN–24

P. 

DI–1541

P. 

DI–1551

 – 

DI–1567

OK

NG

Symptom occurs

Trouble code

–

DIAGNOSTICS

CRUISE CONTROL SYSTEM

DI–1537

1731

HOW TO PROCEED WITH TROUBLESHOOTING

Troubleshoot in accordance with the following procedures:

DI26S–26

CRUISE CONTROL SYSTEM Check Sheet

Inspector’s name:

Customer’s Name

Odometer Reading

             /               /

Condition of
Problem Occurrence

Frequency

Occurred

Problem Occurs

Vehicle Speed when
Problem Occurred

                              /                                /

 Continuous         Intermittent (                     Times a day)

km
mile

Brought in

 Auto cancel

    occurs

 Driving condition



 City driving      



 Freeway      



 Uphill      



 Downhill

 After cancel occurred, did the driver activate cruise control
 again?



 Yes       



 No



 Cancel does not

     occur



 With brake ON



 Shifting into any position except D



 When control SW is pulled to CANCEL position



 Cruise control 

    malfunction



 Slip to acceleration side



 Slip to deceleration side



 Hunting occurs



 O/D cut–off does not occur



 O/D does not return



 Switch 

   malfunction



 SET    



 ACCEL    



 COAST    



 RESUME    



 CANCEL



 Remains ON        



 Does not light up         



 Blinks

Symptoms

DTC Check

1st Time

2nd Time



 Normal System Code    



 Trouble Code (Code            )



 Normal System Code    



 Trouble Code (Code            )



 CRUISE main

     indicator light

VIN

Production Date

Licence Plate No.

km
mile

DI–1538

–

DIAGNOSTICS

CRUISE CONTROL SYSTEM

1732

CUSTOMER PROBLEM ANALYSIS CHECK