Chery QQ - Fault Diagnoses

Chery QQ Service Manual
Section 2 Fault Diagnoses
The description of start system fault:
1. Starter motor dose not run (or run slowly)
2. Start motor can run but can not start the engine
3. Abnormal noise
4. Fault state
5
. Battery connection post (include engine side earth wire link) and starter motor
connection post is tightened or not.
6. Battery is charged or not.
It must put up correct diagnoses to ensure the fault position exactly ---battery, harness,
starter motor, engine, or start switch. Don’t removal starter motor vexedly when
starter motor dose not run. You can check following items to lessen scope of fault
reason.
Condition Possible causes Action
Starter motor
dose not run
Magnet switch has no working sound
1.Battery is discharged
2.Owing to battery transformation, the voltage is
too low
3.Battery post dose not connect well
4.The connection of earth wire is loose
5.Fuse loose or break off
6.Ignition switch contact not well
7.Harness connector has not inserted in position
8.Ignition switch and magnet switch is open
circuit
9.Suction coil is turnoff
10.Slippage of plunger is ineffective
11.Central guard against theft controller is in
guard against theft state or central guard against
theft controller has fault
Charge the battery
Replace the battery
Tighten or replace
Tighten
Replace
Tighten or replace
Inserted in position
Inspect or replace
Repair
Replace magnet switch
Replace
Starter motor
dose not run
Magnet switch has working sound
1.Battery is discharged
2.Owing to battery transformation, the voltage is
too low
3.Battery wire connect loose
4.Magnet switch main contact point ablate or
contact not well
Charge the battery
Replace the battery
Tighten
Replace magnet switch
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