Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 81
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–279
ES
NOTICE:
If P0630 is set, the VIN must be input to the ECM
using an intelligent tester. However, all DTCs are
cleared automatically by the tester when inputting
the VIN. If DTCs other than P0630 are set, check
them first.
B
A
Refer to REGISTRATION (See page
NEXT
GO TO DTC CHART (See page
)
2
INPUT VIN WITH INTELLIGENT TESTER
END
ES–280
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
The purpose of this circuit is to prevent the engine from stalling, while driving in lock-up condition, when
brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signals to the ECM. Then the ECM cancels the
operation of the lock-up clutch while braking is in progress.
MONITOR DESCRIPTION
This DTC indicates that the stop light switch remains ON. When the stop light switch remains ON during
"stop and go" driving, the ECM interprets this as a fault in the stop light switch and the MIL comes on and
the ECM stores the DTC. The vehicle must stop (less than 1.86 mph (3 km/h)) and go (18.65 mph (30 km/
h) or more) 5 times during 2 driving cycles, in order to detect a malfunction.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
The stop light switch remains ON during GO and STOP 5 times.
GO and STOP are defined as follows;
TYPICAL MALFUNCTION THRESHOLDS
DTC
P0724
Brake Switch "B" Circuit High
DTC No.
DTC Detection Conditions
Trouble Areas
P0724
The stop light switch remains ON even when the vehicle
repeats 5 cycles of STOP (less than 1.86 mph (3 km/h)) and
GO (18.65 mph (30 km/h) or more) (2 trip detection logic)
•
Short in stop light switch signal circuit
•
Stop light switch
•
ECM
Related DTCs
P0724: Stop light switch/Range check/Rationality
Required sensors/Components (Main)
Stop light switch
Required sensors/Components (Related)
Speed sensor
Frequency of Operation
Continuous
Duration
5 times
MIL Operation
2 driving cycles
Sequence of Operation
None
Monitor will run whenever following DTCs not present
None
GO: Vehicle speed
18.65 mph (30 km/h) or more
STOP: Vehicle speed
Less than 1.86 mph (3 km/h)
Stop light switch status
Stuck ON
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–281
ES
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using an intelligent tester. Freeze frame data record the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, 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.
1
2
High Mounted
Stop Light
Stop
Stop
STOP
ALT
Battery
IGN
IG1
Stop Light Switch
Skid Control ECU
STOP LP CTRL
ECM
ST1-
STP
Rear Combination
Light (RH)
Rear Combination
Light (LH)
1
2
1
3
1
3
T1
L14
L11
15
E47
16
E47
STP0 A4
5
1
3
2
4
3
2
4
1
A3
16
A133421E01
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1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
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(a) Connect an intelligent tester to the DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST / PRIMARY / STOP
LIGHT SW.
(d) Read the values displayed on the tester.
OK
OK
NG
NG
OK
NG
OK
1
READ VALUE USING INTELLIGENT TESTER (STOP LIGHT SW)
Item
Measurement Item: Range (display)
Normal Condition
STOP LIGHT SW
Stop light switch status:
ON or OFF
•
ON: Brake pedal is depressed
•
OFF: Brake pedal is released
CHECK FOR INTERMITTENT PROBLEMS
2
INSPECT STOP LIGHT SWITCH ASSEMBLY (See page
REPLACE STOP LIGHT SWITCH ASSEMBLY
(See page
3
CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - ECM) (See page
REPAIR OR REPLACE HARNESS OR
CONNECTOR
REPLACE ECM (See page
)
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