Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 14
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–11
ES
HOW TO PROCEED WITH
TROUBLESHOOTING
HINT:
*: Use the intelligent tester.
NEXT
NEXT
HINT:
If the display indicates a communication fault in the tester,
inspect the DLC3.
NEXT
HINT:
Record or print DTCs and freeze frame data, if necessary.
NEXT
NEXT
NEXT
NEXT
HINT:
If the engine does not start, perform steps 10 and 12 first.
1
VEHICLE BROUGHT TO WORKSHOP
2
CUSTOMER PROBLEM ANALYSIS
3
CONNECT INTELLIGENT TESTER TO DLC3*
4
CHECK DTC AND FREEZE FRAME DATA*
5
CLEAR DTC AND FREEZE FRAME DATA*
6
CONDUCT VISUAL INSPECTION
7
SET CHECK MODE DIAGNOSIS*
8
CONFIRM PROBLEM SYMPTOMS
ES–12
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
B
A
NEXT
B
A
NEXT
B
A
B
A
Result
Proceed To
Malfunction does not occur
A
Malfunction occurs
B
GO TO STEP 10
9
SIMULATE SYMPTOMS
10
CHECK DTC*
Result
Proceed To
Malfunction code
A
No code
B
GO TO STEP 12
11
REFER TO DTC CHART
12
CONDUCT BASIC INSPECTION
Result
Proceed To
Malfunctioning parts not confirmed
A
Malfunctioning parts confirmed
B
GO TO STEP 17
13
REFER TO PROBLEM SYMPTOMS TABLE
Result
Proceed To
Malfunctioning circuit confirmed
A
Malfunctioning parts confirmed
B
GO TO STEP 17
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–13
ES
NEXT
B
A
NEXT
NEXT
NEXT
NEXT
NEXT
14
CHECK ECM POWER SOURCE CIRCUIT
15
CONDUCT CIRCUIT INSPECTION
Result
Proceed To
Malfunction not confirmed
A
Malfunction confirmed
B
GO TO STEP 18
16
CHECK FOR INTERMITTENT PROBLEMS
17
CONDUCT PARTS INSPECTION
18
IDENTIFY PROBLEM
19
ADJUST AND/OR REPAIR
20
CONDUCT CONFIRMATION TEST
END
ES–14
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
CHECK FOR INTERMITTENT
PROBLEMS
HINT:
Intelligent tester only:
Inspect the vehicle's ECM using check mode. Intermittent
problems are easier to detect with an intelligent tester when
the ECM is in check mode. In check mode, the ECM uses
1trip detection logic, which is more sensitive to malfunctions
than normal mode (default), which uses 2trip detection logic.
1. Clear DTCs (See page
).
2. Switch the ECM from normal mode to check mode using
an intelligent tester (See page
).
3. Perform a simulation test.
4. Check and wiggle the harness(es), connector(s) and
terminal(s).
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