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THINKCAR
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3.4.7 DPF Regeneration
DPF regeneration is used to clear PM (Particulate Matter) from the DPF filter through continuous
combustion oxidation mode (such as high temperature heating combustion, fuel additive or catalyst reduce
PM ignition combustion) to stabilize the fi lter performance.
DPF regeneration may be performed in the following cases:
a) The exhaust back pressure sensor is replaced.
b) The PM trap is removed or replaced.
c) The fuel additive nozzle is removed or replaced.
d) The catalytic oxidizer is removed or replaced.
e) The DPF regeneration MIL is on and maintenance is performed.
f) The DPF regeneration control module is replaced.
3.4.8 Gear Learning
The crankshaft position sensor learns crankshaft gear machining tolerance and saves to the computer
to more accurately diagnose engine misfi res. If gear learning is not performed for a car equipped with
Delphi engine, the MIL turns on after the engine is started. The diagnostic device detects the DTC P1336
'gear not learned'. In this case, you must use the diagnostic device to perform gear learning for the car.
After gear learning is successful, the MIL turns off . After the engine ECU, crankshaft position sensor, or
crankshaft fl ywheel is replaced, or the DTC 'gear not learned' is present, gear learning must be performed.
3.4.9 IMMO Service
To prevent the car being used by unauthorized keys, the anti-theft key matching function must be
performed so that the immobilizer control system on the car identifi es and authorizes remote control keys
to normally use the car. When the ignition switch key, ignition switch, combined instrument panel, ECU,
BCM, or remote control battery is replaced, anti-theft key matching must be performed.
3.4.10 Injector Coding
Write injector actual code or rewrite code in the ECU to the injector code of the corresponding cylinder so
as to more accurately control or correct cylinder injection quantity. After the ECU or injector is replaced,
injector code of each cylinder must be confirmed or re-coded so that the cylinder can better identify
injectors to accurately control fuel injection.
3.4.11 TPMS Reset
After the tire pressure MIL turns on and maintenance is performed, the tire pressure resetting function
must be performed to reset tire pressure and turn off the tire pressure MIL. Tire pressure resetting must
be performed after maintenance is performed in the following cases: tire pressure is too low, tire leaks, tire
pressure monitoring device is replaced or installed, tire is replaced, tire pressure sensor is damaged, and
tire is replaced for the car with tire pressure monitoring function.
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