| On-vehicle Inspection |
| 1. | Check for DTCs.
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| 2. | Check if sparks occur.
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| 3. | If sparks do not occur, perform the following test.
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| 4. | Using a spark plug wrench, install spark plugs. |
| 5. | Install the ignition coils. |
| 6. | Install the cylinder head center cover and the engine cover. |
DescriptionIgnition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are preprogrammed in the memory of the ECM (Engine Control Module).
C
Inspection1.Connect the battery voltage and check the blower motor rotation.2.If the blower motor does not operate well, substitute with a known-good blower motor and check for proper operation.3.Replace the blower motor if it is proved that there is a problem with it.