Failure In Driver Stage Of 1#, 2# Coils Of Step Motor - Chery QQ6 Service Manual

11.10 Failure in Driver Stage of 1#, 2# Coils of Step Motor

Failure codes: P1682, 1683
No.
1 Turn on the ignition switch but do not start the
engine.
2 Pull out connector of the electronic throttle, and
then check if the resistance value between 5# and
3# pins of the connector is around 6.1 Ω.
3 Pull out the connector, and then use a multimeter
to check if a 12V alternate voltage is present
between 5# and 3# connectors of the electronic
throttle.
4 Use a multimeter to check if a 12V voltage is
present between the connector of the harness and
ground when the key is ON.
5 Between ECU and harness, use a multimeter
respectively to check if it is break or short circuit
between 67#, 65# pins of ECU and 5# pin of the
connector and between 66#, 64# pins of ECU and
3# pin of the connector.
Note: Much about failure diagnosis for other parts has been involved above.
Operating steps Result Follow up steps
Next step
Yes Next step
No Replace the
electronic throttle
body
Yes Next step
No Check the circuit
Yes Replace the idle
speed actuator
No Next step
Yes Repair or replace
the harness
No Replace ECU