Toyota 1KZ-TE Repair Manual page 20

BACK TO CHAPTER INDEX
5. PROBLEM SYMPTOMS TABLE
The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to
troubleshoot the problem when a "Normal" code is displayed in the diagnostic trouble code check but the
problem is still occurring. Numbers in the table indicate the inspection order in which the circuits or parts
should be checked.
HINT:
When the problem is not detected by the diagnostic system even though the problem symptom is present,
it is considered that the problem is occurring outside the detection range of the diagnostic system, or that
the problem is occurring in a system other than the diagnostic system.
Circuit Inspection, Inspection Order
Indicates the circuit which needs to be checked for each problem
symptom. Check in the order indicated by the numbers.
D Problem Symptom
PROBLEM SYMPTOMS TABLE
Engine does not crank (Does not start)
No initial combustion (Does not start)
No complete combustion (Does not start)
Engine cranks normally (Difficult to start)
Cold engine (Difficult to start)
Hot engine
High engine idle speed (Poor idling)
1KZ- -TE ENGINE SUP (RM790E)
INTRODUCTION
Symptom
idling)
- - HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
Page
Indicates the page where the flow chart for each circuit
is located.
Circuit or Part Name
Indicates the circuit or part which needs to be checked.
Suspected Area
1. Starter and starter relay
1. Engine ECU power source circuit
2. Fuel pump control circuit
3. Engine ECU
1. Fuel pump control circuit
1. Starter signal circuit
2. Fuel pump control circuit
3. Compression
1. Starter signal circuit
2. Fuel pump control circuit
1. Starter signal circuit
2. Fuel pump control circuit
1. A/C signal circuit (Compressor circuit)
2. Engine ECU power source circuit
1. A/C signal circuit
2. Fuel pump control circuit
1. Compression
2. Fuel pump control circuit
1KZ-TE PAGES FROM SUPPLEMENT
BACK TO MODEL INDEX
See page
ST- -12, 13
DI- -124
DI- -127
IN- -30
DI- -127
DI- -121
DI- -127
EM- -3
DI- -121
DI- -127
DI- -121
DI- -127
AC- -54
DI- -124
CONTINUED
IN- -17