Description
Ignition 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).The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM. The ignition coil is activated, and timing is controlled.
Inspection
Check it by the procedure below to see if the function of the ECM is normal.
1.
Turn the ignition key to the
"ON" position.
2.
Cover the front sensor to stop
...
Inspection
1.
Check the signal waveform of the CMPS and CKPS using
the GDS.
Specification:
Refer to “Wave Form”
...
Brake Booster Operating Test
For simple checking of the brake booster operation, carry out the following tests.
1.
Run the engine for one or two
minutes, and then stop it. If the pedal depresses fully the first time ...