Toyota Sequoia (2005). Manual - part 192











D14152

DTC was set.

0.5 sec. 0.5 sec. 0.5 sec.



 : Freeze frame data which can be read

D14151

DLC3

1314 1516

12

11

10

9

1 2 3 4 5 6 7 8

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

DI–563

757

FREEZE FRAME DATA
Freeze frame data records the engine conditions (fuel system,
calculated load, engine coolant temperature, fuel trim, engine
speed, vehicle speed, etc.) when a malfunction is detected.
When troubleshooting, freeze frame data can help determine
if the vehicle was running or stopped, if the engine was warmed
up or not, if the air/fuel ratio was Lean or Rich, and other data
from the time the malfunction occurred.

The hand–held tester records freeze frame data in five different
instances: 1) 3 times before the DTC is set, 2) once when the
DTC is set, and 3) once after the DTC is set. These data can be
used to simulate the vehicle’s condition around the time when
the malfunction occurred. The data may help find the cause of
the malfunction, or judge if the DTC is being caused by a tempo-
rary malfunction or not.

DLC3 (Data Link Connector 3)
The vehicle’s ECM uses the ISO 15765–4 for communication
protocol. The terminal arrangement of the DLC3 complies with
SAE J1962 and matches the ISO 15765–4 format.
HINT:
Connect the cable of the hand–held tester to the DLC3, turn the
ignition switch ON and attempt to use the hand–held tester. If
the screen displays UNABLE TO CONNECT TO VEHICLE, a
problem exists in the vehicle side or the tester side.
If the communication is normal when the tool is connected to
another vehicle, inspect the DLC3 on the original vehicle.
If the communication is still impossible when the tool is con-
nected to another vehicle, the problem is probably in the tool it-
self. Consult the Service Department listed in the tool’s instruc-
tion manual.

Symbol

Terminal No.

Name

Reference terminal

Result

Condition

SIL

7

Bus ”+” line

5 – Signal ground

Pulse generation

During transmission

CG

4

Chassis ground

Body ground

Below 1 

Ω

Always

SG

5

Signal ground

Body ground

Below 1 

Ω

Always

BAT

16

Battery positive

Body ground

11 to 14 V

Always

CANH

6

HIGH–level CAN

bus line

CANL

54 to 69 

Ω

IG switch OFF

CANH

6

HIGH–level CAN

bus line

Battery positive

1 M

Ω

 or higher

IG switch OFF

CANH

6

HIGH–level CAN

bus line

CG

1 k

Ω

 or higher

IG switch OFF

CANL

14

LOW–level CAN

bus line

Battery positive

1 M

Ω

 or higher

IG switch OFF

CANL

14

LOW–level CAN

bus line

CG

1 k

Ω

 or higher

IG switch OFF

DI–564

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

758

CHECK BATTERY VOLTAGE

Battery voltage: 11 to 14 V

If voltage is below 11 V, replace the battery before proceeding.

CHECK MIL
(a)

Check that the MIL illuminates when turning the ignition
switch ON.

If the MIL does not illuminate, there is a problem in the MIL cir-
cuit (refer to MIL CIRCUIT on page 

DI–512

)

(b)

When the engine is started, the MIL should turn off.

ALL READINESS
For this vehicle, using the hand–held tester allows readiness
codes corresponding to all DTCs to be read. When diagnosis
(normal or malfunctioning) has been complete, readiness
codes are set. Enter the following menus: ENHANCED OBD II
/ MONITOR STATUS on the hand–held tester.

DIDJ0–01

D13872

DLC3

OBD II Scan Tool
(Hand–held Tester)

CAN VIM

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

DI–565

759

DTC CHECK / CLEAR

1.

CHECK DTC

DTCs which are stored in the ECM can be displayed with the
hand–held tester or generic OBD II scan tool.
These scan tools can display pending DTCs and current DTCs.
Some DTC aren’t stored if the ECM doesn’t detect a malfunc-
tion during consecutive driving. However, the detected mal-
function during once driving is stored as pending DTC.

(a)

Connect the hand–held tester to the Controller Area Net-
work Vehicle Interface Module (CAN VIM). Then connect
the CAN VIM to the Data Link Connector 3 (DLC3).

(b)

Turn the ignition switch ON.

(c)

Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DTC INFO / CURRENT CODES (or PENDING
CODE).

(d)

Confirm the DTCs and freeze frame data and then write
them down.

(e)

See page 

DI–573

 to confirm the details of the DTCs.

NOTICE:
When simulating a symptom with the scan tool to check for
DTCs, use normal mode. For codes on DIAGNOSTIC
TROUBLE CODE CHART subject to ”2–trip detection log-
ic”, perform the following actions.
Turn the ignition switch OFF after the symptom is simulated
once. Then repeat the simulation process again. When the
problem has been simulated twice, the MIL illuminates and the
DTCs are recorded in the ECM.

2.

CLEAR DTC

(a)

Connect the hand–held tester to the CAN VIM. Then con-
nect the CAN VIM to the DLC3.

(b)

Turn the ignition switch ON.

(c)

Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DTC INFO / CLEAR CODES and press YES.

DIDJ1–01

D13872

DLC3

OBD II Scan Tool
(Hand–held Tester)

CAN VIM

D14153

ON

OFF

0.13 seconds

0.13 seconds

DI–566

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

760

CHECK MODE PROCEDURE

DESCRIPTION
Check mode has a higher sensitivity to malfunctions and can
detect malfunctions that normal mode cannot detect. Check
mode can also detect all the malfunctions that normal mode can
detect. In check mode, DTCs are detected with 1–trip detection
logic.

CHECK MODE PROCEDURE
(a)

Make sure that the items below are true:
(1)

Battery positive voltage 11 V or more

(2)

Throttle valve fully closed

(3)

Transmission in the P or N position

(4)

A/C switched OFF

(b)

Turn the ignition switch OFF.

(c)

Connect the hand–held tester together with the Controller
Area Network Vehicle Interface Module (CAN VIM) to the
DLC3.

(d)

Turn the ignition switch ON.

(e)

Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / CHECK MODE.

(f)

Change the ECM to check mode. Make sure the MIL
flashes as shown in the illustration.

NOTICE:
All DTCs and freeze frame data recorded will be erased if:
1) the hand–held tester is used to change the ECM from
normal mode to check mode or  vice–versa; or 2) during
check mode, the ignition switch is turned from ON to ACC
or LOCK.
Before check mode, make notes of the DTCs and freeze
frame data.
(g)

Start the engine. The MIL should turn off after the engine
starts.

(h)

Perform ”MONITOR DRIVE PATTERN” for the ECT test
(See page 

DI–551

).

(Or, simulate the conditions of the malfunction described
by the customer).

(i)

After simulating the malfunction conditions, use the
hand–held tester diagnosis selector to check the DTC
and freeze frame data.