1998 TOYOTA LAND CRUISER OBD port

DI3BN-04
Vehicle Brought to Workshop
Customer Problem Analysis
Check DTC and Freeze Frame Data (Precheck)
Record or Print DTC and Freeze Frame Data DI-361
Clear DTC and Freeze Frame Data DI-361
Visual Inspection
Setting the Check Mode Diagnosis DI-361
1
Items insideare titles of pages in this manual, with the
page number indicated in the bottom portion. See the indicated
pages for detailed explanations.
DI-360
Connect an OBD II scan tool or hand-held tester to DLC3.
If the display shows ºUNABLE TO CONNECT TO VEHICLEº when you have connected the
scan tool/hand-held tester, inspect DLC3 DI-361
2
3
4
5
6
Symptom does not occur
Problem Symptom Confirmation8
7Symptom Simulation
P.IN-26
Symptom occurs
DTC Check
DI-361OK Code
11Preliminary Check
DI-361
DTC Chart
DI-389
Mechanical System Test
DI-361
Manual Shifting Test
DI-361OK
OK
Chapter 1
(Electronic)Chapter 2
(On-V ehicle)
DI-396OKChapter 3
(Off-V ehicle)OK Matrix Chart of Problem Symptoms - DI-396
Circuit
Inspection
NG
Parts Inspection
NG
NGNG
Identification of ProblemRepairConfirmation TestEnd
NG
NG
12
OK13
14
1516
17 9
10
DI-396DI-396
DI-495 to DI-500
18

Pattern Select Switch Circuit Check

A/T.P. Indicator Circuit Check DI-358
- DIAGNOSTICSAUTOMATIC TRANSMISSION
551 Author
: Date
:
2004 LAND CRUISER (RM1071U)
AUTOMATIC TRANSMISSION
HOW TO PROCEED WITH TROUBLESHOOTING

A10150A10149BE6653
A10281VSV is OFFVSV is ON ON
Air
FAir
E
F E
- DIAGNOSTICSENGINE
DI-231
424 Author
: Date
:
9 Check CCV.
PREPARATION:
(a) Disconnect the vacuum hose for the CCV VSV from the
charcoal canister.
(b) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(c) Select the ºENHANCED OBD II / ACTIVE TESTº mode on
the hand-held tester.
(d) Select the item ºCAN CTRL VSV / ALLº in the ACTIVE
TEST and operate CCV.
CHECK:
Check the VSV operation when it is operated by the hand-held
tester.
OK:
VSV is ON:
Air does not flow from port E to port F.
VSV is OFF:
Air from port E flows out through port F.
OK Go to step 13.
NG
10 Check vacuum hose between CCV and charcoal canister.
CHECK:
(a) Check that the vacuum hose is connected correctly.
(b) Check the vacuum hose for looseness and disconnection.
(c) Check the vacuum hose for cracks, hole damage, and blockage.
NG Repair or replace vacuum hose.
OK
11 Check operation of CCV (See page SF-48).
NG Replace CCV.
OK

BE6653A10143A10144A10801VSV is ONVSV is OFF ON
Air
Air
E
FE
F
DI-232
- DIAGNOSTICSENGINE
425 Author
: Date
:
12 Check for open and short in harness and connector between EFI or ECD relay
and CCV, and CCV and ECM (See page IN-36).
NG Repair or replace harness or connector.
OK
Replace ECM (See page SF-60).
13 Check pressure switching valve.
PREPARATION:
(a) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(b) Select the ºENHANCED OBD II / ACTIVE TESTº mode on
the hand-held tester.
(c) Select the item ºTANK BYPASS VSV / ALLº in the AC-
TIVE TEST and operate pressure switching valve.
CHECK:
Check the VSV operation when it is operated by the hand-held
tester.
OK:
VSV is ON:
Air from port E flows out through port F.
VSV is OFF:
Air does not flow from port E to port F.
OK Go to step 16.
NG
14 Check operation of pressure switching valve (See page SF-46).
NG Replace pressure switching valve.
OK

A10150A10149BE6653
A10281VSV is OFFVSV is ON ON
Air
FAir
E
F E
- DIAGNOSTICSENGINE
DI-253
446 Author
: Date
:
9 Check CCV.
PREPARATION:
(a) Disconnect the vacuum hose for the CCV from the char-
coal canister.
(b) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(c) Select the ºENHANCED OBD II / ACTIVE TESTº mode on
the hand-held tester.
(d) Select the item ºCAN CTRL VSV / ALLº in the ACTIVE
TEST and operate CAN CTRL VSV (Press the right or left
button).
CHECK:
Check the VSV operation when it is operated by the hand-held
tester.
OK:
VSV is ON:
Air does not flow from port E to port F.
VSV is OFF:
Air from port E flows out through port F.
OK Go to step 13.
NG
10 Check vacuum hose between CCV and charcoal canister.
CHECK:
(a) Check that the vacuum hose is connected correctly.
(b) Check the vacuum hose for looseness and disconnection.
(c) Check the vacuum hose for cracks, hole damage, and blockage.
NG Repair or replace vacuum hose.
OK

BE6653A10143A10144A10801VSV is ONVSV is OFF ON
Air
Air
E
FE
F
DI-254
- DIAGNOSTICSENGINE
447 Author
: Date
:
11 Check operation of CCV (See page SF-48).
NG Replace CCV.
OK
12 Check for open and short in harness and connector between EFI or ECD relay
and CCV, and CCV and ECM (See page IN-36).
NG Repair or replace harness or connector.
OK
Replace ECM (See page SF-60).
13 Check pressure switching valve.
PREPARATION:
(a) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(b) Select the ºENHANCED OBD II / ACTIVE TESTº mode on
the hand-held tester.
(c) Select the item ºTANK BYPASS VSV / ALLº in the AC-
TIVE TEST and operate TANK BYPASS VSV (press the
right or left button).
CHECK:
Check the VSV operation when it is operated by the hand-held
tester.
OK:
VSV is ON:
Air from port E flows out through port F.
VSV is OFF:
Air does not flow from port E to port F.
OK Go to step 16.
NG

DI078-23
Vehicle Brought to Workshop
Customer Problem Analysis P. DI-2
Problem Symptom Confirmation
If the engine does not start perform steps 10 and 12 firstConnect the OBD II scan tool or hand-held tester to DLC3 P. DI-3
If the display indicates a communication fault in the tool, inspect DLC3 P. DI-3
Check DTC and Freeze Frame Data (Precheck)
Record or Print DTC and Freeze Frame Data P. DI-3
Clear DTC and Freeze Frame Data P. DI-3
Visual Inspection
Setting the Check Mode Diagnosis P. DI-3
Symptom Simulation P. IN-26
Basic Inspection P. DI-3DTC Chart P. DI-36
Problem Symptoms Table P. DI-48
Circuit Inspection P. DI-49
Adjustment, Repair
DTC Check P. DI-3
Items insideare titles of pages in
in the bottom portion. See the indicated
pages for detailed explanations. this manual, with the page number
Malfunction
occurs.Malfunction does not occur.
Parts Inspection
Check for Intermittent Problems P. DI-3
Identification of Problem
Confirmation Test
End 1
2
3
4
5
6
7
108
9
11
12
13
15 14
16
Normal Malfunction code.
17The hand-held tester can be used at
bold frame.
- DIAGNOSTICSENGINE
DI-1
194 Author
: Date
:
2004 LAND CRUISER (RM1071U)
ENGINE
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following page.

DIC21-01
DI-30
- DIAGNOSTICSENGINE
223 Author
: Date
:
2004 LAND CRUISER (RM1071U)
READINESS MONITOR DRIVE PATTERN
1. PURPOSE OF THE READINESS TESTS

The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emission-re-
lated components and report any detected abnormalities in the form of Diagnostic Trouble Codes
(DTCs). Since the various components need to be monitored during different driving conditions, the
OBD II system is designed to run separate monitoring programs called Readiness Monitors. Many
state Inspection and Maintenance (I/M) programs require that vehicles complete their Readiness Mon-
itors prior to beginning an emissions test.

The current status of the Readiness Monitors can be seen by using the hand-held tester with version
9.0 software (or newer), or a generic OBD II Scan tool.

To view the Readiness Monitor status using the hand-held tester, select ºMonitor Statusº from the En-
hanced OBD II Menu.

A status of ºcompleteº indicates that the necessary conditions have been met to run the performance
tests for the related Readiness Monitor.

The Readiness Monitor will be reset to ºincompleteº if:

ECM has lost power (battery or fuse).

DTCs have been cleared.

The conditions for running the Readiness Monitor have not been met.

In the event that any Readiness Monitor shows ºincomplete,º follow the appropriate Readiness Monitor
Drive Pattern to active the monitor and change the readiness status to ºcomplete.º
CAUTION:
Strictly observe of posted speed limits, traffic laws, and road conditions when performing these
drive patterns.
NOTICE:
These drive patterns represent the fastest method to satisfy all necessary conditions which allow
the specific readiness monitor to complete.
In the event that the drive pattern must be interrupted (possibly due to traffic conditions or other fac-
tors) the drive pattern can be resumed, and in most cases, the readiness monitor will still set to ºcom-
pleteº.
To ensure rapid completion of readiness monitors, avoid sudden changes in vehicle load and speed
(driving up and down hills and/or sudden acceleration).