Hint:
Past problems that seem unrelated may also help in some cases.

Operation flow
Symptom confirmation and diagnostic trouble codePrecaution
Precaution for vehicle with srs airbag and
seat belt pretensioner
Some operations in this section may affect the srs
airbags and seat belt pretensioner. Prior to
performing the corresponding operations, read the
srs airbag notice (see page rs-1).
Components
...
Radiator
Components
On-vehicle inspection
Check radiator reservoir cap subassembly
Measure the valve opening pressure.
If there are water stains or foreign matter on oring
1, clean it with water and finger scouring.
Check that o-ring 1 is not deformed, cracked or
sw ...
Fuel pump control circuit
Description
When the engine is cranked, the starter relay drive signal output from the
star terminal of the ecm is
input into the sta terminal of the ecm, and ne signal generated by the
crankshaft position sensor is also
input into the ne+ terminal. Thus, the ecm interprets that the engine is ...