1986 TOYOTA LAND CRUISER diagnostic menu

FI7052DepressedReleased
DI-324
- DIAGNOSTICSENGINE
517 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean
or rich, as well as other data from the time when a malfunction occurred.
Hand-held tester:
1 Connect hand-held tester, and read the voltage for accelerator pedal position
sensor data.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DATA LIST / ETCS / ACCEL POS #1 and ACCEL
POS #2.
CHECK:
Read the voltage for the accelerator pedal position sensor data.
OK:
Accelerator pedalACCEL POS #1ACCEL POS #2
Released0.5 to 1.1 V1.2 to 2.0 V
Depressed2.6 to 4.5 V3.4 to 5.3 V
OK Go to step 5.
NG

FI7052DepressedReleased
DI-332
- DIAGNOSTICSENGINE
525 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not presentSee ºList of disable a monitorº (on page DI-3)
Either of the following conditions is metA or B
A. Ignition switchON
B. Throttle control motor powerON
System is not under limp home mode due to accelerator pedal position sensor malfunction
TYPICAL MALFUNCTION THRESHOLDS
Detection CriteriaThreshold
|VPA - (VPA2 - 0.8)|*
*Corrected by learning valueMore than 0.4 V
WIRING DIAGRAM
Refer to DTC P2120 on page DI-318.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean
or rich, as well as other data from the time when a malfunction occurred.
Hand-held tester:
1 Connect hand-held tester, and read the voltage for accelerator pedal position
sensor data.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DATA LIST / ETCS / ACCEL POS #1 and ACCEL
POS #2.
CHECK:
Read the voltage for the accelerator pedal position sensor data.
OK:
Accelerator pedalACCEL POS #1ACCEL POS #2
Released0.5 to 1.1 V1.2 to 2.0 V
Depressed2.6 to 4.5 V3.4 to 5.3 V
OK Replace ECM (See page SF-60).
NG

A19522A19630
STAR(+)
E1
E6
ECM Connector(-)
STSW (+)E7
- DIAGNOSTICSENGINE
DI-337
530 Author
: Date
:
2004 LAND CRUISER (RM1071U)
2 Connect hand-held tester, and check STA signal.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON, and push the hand-held tester main switch ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
CHECK:
Read the STA signal on the hand-held tester while the starter operates.
OK:
Ignition Switch PositionONSTART
STA SignalOFFON
NG Go to step 5.
OK
3 Check voltage between terminal STAR, STSW and E1 of ECM connector.
CHECK:
Measure the voltage between the terminals of the E6 and E7
ECM connectors, while cranking the engine (ignition switch
START position).
OK:
Tester ConnectionSpecified Condition
STAR (E6-9) - E1 (E7-1)9 to 14 V
STSW (E7-12) - E1 (E7-1)9 to 14 V
RESULT:
Terminal STARTerminal STSWProceed to
9 to 14 V9 to 14 VA
0 V9 to 14 VB
0 V0 VC
B Replace ECM (See page SF-60).
C Go to step 9.
A

A07061DLC3
Hand-Held Tester
DI-6
- DIAGNOSTICSENGINE
199 Author
: Date
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2. DTC CHECK (Normal Mode)
NOTICE:

If no DTC appears in normal mode:
On the OBD ll scan tool or the hand-held tester check
the pending fault code using the Continuous Test Re-
sults function (Mode 7 for SAE J1979).

When the diagnosis system is changed from normal
mode to check mode or vice-versa, all DTCs and
freeze frame data recorded in normal mode will be
erased. Before changing modes, always check and
make a note of DTCs and freeze frame data.
(a) Checking DTCs using the OBD II scan tool or hand-held
tester.
(1) Connect the OBD II scan tool or the hand-held tes-
ter to DLC3.
(2) Turn the ignition switch ON.
(3) Use the OBD II scan tool or the hand-held tester to
check the DTCs and freeze frame data and then
write them down.
For the hand-held tester, enter the following me-
nus: DIAGNOSIS / ENHANCED OBD II / DTC INFO
/ CURRENT CODEDS. For the OBD II scan tool,
see its instruction manual.
(4) See page DI-36 to confirm the details of the
DTCs.
NOTICE:
When simulating a symptom with the OBD II scan tool (ex-
cluding hand-held tester) to check the DTCs, use the nor-
mal mode. For DTCs chart subject to º2 trip detection log-
icº, perform either of the following actions.

Check the pending fault code:
For the hand-held tester, enter the following menus:
DIAGNOSIS / ENHANCED OBD II / DTC INFO / PEND-
ING CODES.

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 comes on and the DTCs are recorded in the
ECM.

A07061DLC3
Hand-Held Tester
BR3904
0.13 sec.0.13 sec.
ON
OFF
- DIAGNOSTICSENGINE
DI-7
200 Author
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Check the pending fault code using the Continuous
Test Results function (Mode 7 for SAE J1979) on the
OBD II scan tool.
(b) Clearing the DTCs using the OBD II scan tool or the
hand-held tester.
(1) Connect the OBD II scan tool or the hand-held tes-
ter to the DLC3.
(2) Turn the ignition switch ON.
(3) Erase DTCs and freeze frame data with the OBD II
scan tool (complying with SAE J1978) or the hand-
held tester. For the hand-held tester: 1) enter the
following menus: DIAGNOSIS / ENHANCED OBD
II / DTC INFO / CLEAR CODES; and 2) press YES.
For the OBD II scan tool, see its instruction manual.
(c) Clearing the DTCs not using the OBD II scan tool or the
hand-held tester.
Remove the EFI or ECD No. 1 and ETCS fuses from the
engine room J/B for more than 60 seconds, or disconnect
the battery terminal for more than 60 seconds.
After disconnecting the battery terminal, perform the ºINI-
TIALIZE procedure.
3. DTC CHECK (Check Mode)
HINT:
Hand-held tester only:
Check mode has a higher sensitivity to detect malfunctions and
can detect malfunctions that normal mode cannot detect.
Check mode can also detect all the malfunctions that normal
mode can detect.
(a) Follow these steps when preparing to use the hand-held
tester check mode.
(1) Make sure that the items below are true:

Battery positive voltage 11 V or more

Throttle valve fully closed

Transmission in the P or N position

A/C switched OFF
(2) Turn the ignition switch OFF.
(3) Connect the hand-held tester to the DLC3.
(4) Turn the ignition switch ON.
(5) Change the ECM to check mode with the hand-
held tester. Enter the following menus: DIAGNOSIS
/ ENHANCED OBD II / 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 OFF.

DI-8
- DIAGNOSTICSENGINE
201 Author
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(6) Start the engine. The MIL should turn off after the
engine starts.
(7) Simulate the conditions of the malfunction de-
scribed by the customer.
(8) After simulating the malfunction conditions, use the
hand-held tester diagnosis selector to check the
DTC, freeze frame data and other data.
(9) After checking the DTC, inspect the applicable cir-
cuit.
(b) Clearing DTCs using the OBD ll scan tool or the hand-
held tester.
(1) Connect the OBD ll scan tool or the hand-held tes-
ter to the DLC3.
(2) Turn the ignition switch ON.
(3) Erase DTCs and freeze frame data with the OBD II
scan tool (complying with SAE J1978) or the hand-
held tester. For the hand-held tester: 1) enter the
following menus: DIAGNOSIS ENHANCED OBD II
/ DTC INFO / CLEAR CODES; and 2) press YES.
For the OBD II scan tool, see its instruction manual.
(c) Clearing the DTCs without using the OBD ll scan tool or
the hand-held tester.
Remove the EFI or ECD No. 1 and ETCS fuses from the
engine room J/B for more than 60 seconds, or disconnect
the battery terminal for more than 60 seconds.
After disconnecting the battery terminal, perform the ºINI-
TIALIZEº procedure.
4. FAIL-SAFE CHART
If any of the following code is recorded, the ECM enters fail-safe mode.
DTC No.Fail-Safe OperationFail-Safe Deactivation Conditions
P0031
P0032
P0037
P0038
P0051
P0052
P0057
P0058
The heater circuit in which an abnormality is detected is
turned offIgnition switch OFF
P0100
P0102
P0103Ignition timing is calculated from engine speed and throttle
angleºPassº condition detected
P0110
P0112
P0113
Intake air temperature is fixed at 20°C (68°F)ºPassº condition detected
P0115
P0117
P0118
Engine coolant temperature is fixed at 80°C (176°F)ºPassº condition detected

DI-14
- DIAGNOSTICSENGINE
207 Author
: Date
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7. DATA LIST
HINT:
Using the hand-held tester DATA LIST allows switch, sensor, actuator and other item values to be read with-
out removing any parts. Reading the DATA LIST early in troubleshooting is one way to shorten labor time.
NOTICE:
In the table below, the values listed under ºNormal Conditionº are reference values. Do not depend
solely on these reference values when deciding whether a part is faulty or not.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the ºONº button of the hand-held tester.
(f) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
(g) According to the display on tester, read the ºDATA LISTº.
ItemMeasurement Item/Range
(Display)Normal Condition*Diagnostic Note
INJECTOR
Injection period of the
No. 1 cylinder/
Min.: 0 ms, Max.: 32.64 ms
Idling: 2.1 to 3.9 ms-
IGN ADVANCE
Ignition timing advance
for No.1 cylinder/
Min.: -64 deg., Max.: 63.5 deg.
Idling: BTDC 5 to 25°-
CALC LOADCalculated load by ECM/
Min.: 0%, Max.: 100%
Idling: 12.5 to 19.7%

Racing without load (2,500 rpm):
10.7 to 17.9%
-
MAFAir flow rate from MAF sensor/
Min.: 0 gm/s, Max.: 655 gm/s

Idling:
4.1 to 6.4 gm/sec.

Racing without load (2,500 rpm):
12.5 to 20.8 gm/sec.
If value is approximately 0.0 gm/s:

Mass air flow meter power
source circuit open

VG circuit open or short
If value is 160.0 gm/s or more:

E2G circuit open
ENGINE SPDEngine Speed/
Min.: 0 rpm, Max.: 16,383 rpmIdling:
650 to 750 rpm-
COOLANT TEMPCoolant temperature/
Min.: -40°C, Max.: 140°CAfter warming up:
80 to 95°C (176 to 203°F)
If value is -40C (-40F): sensor
circuit is open.
INTAKE AIRIntake air temperature/
Min.: -40 °C, Max.: 140 °CEquivalent to ambient temp.
(After cold soak)
circuit is oen.

If value is 140C (284F) or
more: sensor circuit is shorted.
THROTTLE POSAbsolute throttle position sensor/
Min.: 0%, Max.: 100%
Throttle fully closed: 10 to 24%

Throttle fully open: 66 to 98%Read value with the ignition switch
ON (Do not start engine).
THROTTLE INITIALThrottle fully closed rearing value0.5 to 0.9 V-
CTP SWClosed throttle position switch/
ON or OFF
Throttle fully closed: ON

Throttle open: OFF-
VEHICLE SPDVehicle speed/
Min.: 0 km/h, Max.: 255 km/hVehicle stopped: 0 km/h (0 mph)Speed indicated on speedometer
O2S B1 S1
Oxygen sensor output voltage of
the bank 1 sensor 1/
Min.: 0 V, Max.: 1.275 V
Idli 01t 09V
Performing INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
the voltage output of each sensor.
O2S B2 S1
Oxygen sensor output voltage of
the bank 2 sensor 1/
Min.: 0 V, Max.: 1.275 V
Idling: 0.1 to 0.9 VPerforming INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
the voltage output of each sensor.

- DIAGNOSTICSENGINE
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8. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand-held tester or the OBD II scan tool allows the relay, VSV, ac-
tuator and so on to operate without parts removal. Performing the ACTIVE TEST as a first step of trouble-
shooting is one method to shorten diagnostic time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the ºONº button of the hand-held tester or the OBD II scan tool.
(f) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST.
(g) According to the display on tester, perform the ºACTIVE TESTº.
ItemTest DetailsDiagnostic Note
INJ VOL
[Test Details]
Control the injection volume.
Min.: -12.5%, Max.: 24.8%
[Vehicle Condition]
Engine speed: 3,000 rpm or less.
All injectors are tested at
once.

Injection volume is gradual-
ly changed between -12.5
and 25%
A/F CONTROL
[Test Details]
Control injection volume
-12.5 or 25 % (change injection volume -12.5 % or 25 %)
[Vehicle Condition]
Engine speed: 3,000 rpm or less
Following A/F CONTROL
procedure enables techni-
cian to check and graph volt-
age outputs of both the A/F
sensor and heated oxygen
sensor
For displaying graph, enter
ºACTIVE TEST / A/F CON-
TROL / USER DATAº, select
ºAFS B1S1 and O2S B1S2º
by pressing ºYESº and push
ºENTERº. Then press ºF4º
FUEL PUMP / SPD
[Test Details]
Control the fuel pump speed.
ON or OFF
-
VVT CTRL B1
[Test Details]
Active VVT system (Bank 1)
ON or OFF
ON: Rough idle or engine
stall

OFF: Normal engine speed
VVT CTRL B2
[Test Details]
Active VVT system (Bank 2)
ON or OFF
ON: Rough idle or engine
stall

OFF: Normal engine speed
CAN CTRL VSV
[Test Details]
Activate the VSV for canister control.
ON or OFF
-
TANK BYPASS VSV
[Test Details]
Activate the VSV for tank bypass.
ON or OFF
-
A/C MAG CLUTCH
[Test Details]
Control the A/C magnet clutch.
ON or OFF
-
EVAP VSV (ALONE)
[Test Details]
Activate the VSV for EVAP control.
ON or OFF
-