Chery QQ6 Service Manual page 56

casing. When one of the primary windings grounding channel is connected, the primary winding is
in charging. Once the primary winding circuit is cut off by ECU, the charging will be stopped. At the
same time, the high voltage is sensed in the secondary winding and making the spark plug
discharging. There is a different with the distributor ignition coil: for the ignition coil ZS - K2´ 2,
there is one spark plug on both side of the secondary winding, so the both spark plugs can ignite at
the same time. These two primary windings power on/off alternatively, correspondently, these two
secondary windings discharge alternatively.
10.3 Technical characteristic
Item
Nominal voltage
Resistance
℃
(20 to 25 )
Inductance
℃
(20 to 25 )
Voltage produced
10.4 Failure effects and judgment method
l
Failure effects: start failure etc.
l
Reasons for the failures: burn out due to too strong current, damage by external force etc.
l
Maintenance precautions: use of "test ignition by short circuit" to test the ignition function is
prohibited during maintenance to avoid damage to the electronic controller.
l
Simple measurement method:
With the joint removed, turn the digital multimeter to Ohm shift, and then connect the two meter
pens respectively to the two pins of primary winding. At 20 , the resistance should be 0.42
while this value of secondary winding should be 11.2-14.8kΩ.
Primary winding
Secondary
winding
Primary winding
Secondary
winding
50pF load
50pF//1MW load
Double spark ignition coil
Value
Min. Typical
14
0.42 0.5
11.2 13.0
3.4 4.1
26.5 32.0
30
23
℃
87# pin of main relay
Unit
Max.
V
W
0.58
14.8
kW
4.8 mH
37.5 H
kV
kV
-0.58Ω,