Chery QQ6 Service Manual download pdf (Page 20)

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

Value Item

Min. Typical Max.

Unit

Nominal voltage 14 V

Primary winding 0.42 0.5 0.58

Ω

Resistance

(20 to 25)℃

Secondary

winding

11.2 13.0 14.8

kΩ

Primary winding 3.4 4.1 4.8 mH Inductance

(20 to 25)℃

Secondary

winding

26.5 32.0 37.5 H

50pF load 30 kV Voltage produced

50pF//1MΩ load

23 kV

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℃ -0.58Ω,

while this value of secondary winding should be 11.2-14.8kΩ.

Double spark ignition coil

87# pin of main relay

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 84 85

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Chery QQ6 Service Manual Page 20