P1624
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Automatic transmission does not change gear.
CHECK ENGINE.
CHECK GEARBOX.
CHECK ENGINE. Request (Bus from TCM).
Fault symptoms
|
•
|
Automatic transmission does not change gear.
|
On-Board Diagnostics
Type of diagnosis:
|
-
|
Continuous. However, it is interrupted once the fault criteria have been fulfilled and does not restart until the next driving cycle.
|
Enable criteria:
(Conditions that must be fulfilled for diagnostics to be performed.)
|
-
|
Global conditions for this diagnostic trouble code: When starting the engine, the atmospheric pressure must exceed 78 kPa and the temperature of the coolant and the intake air must exceed -7°C.
|
Fault criteria:
(When enable criteria have been fulfilled, diagnostics will check if the fault criteria have been fulfilled.)
|
-
|
TCM requests CHECK ENGINE.
|
Dependents:
(Once fault criteria have been fulfilled, a number of other diagnostics must report OK before the diagnostic trouble code can finally be generated.)
System reaction to a fault:
(Once the fault criteria have been fulfilled, certain measures will sometimes be taken.)
OK report:
(This diagnosis may be included as a dependent to another diagnosis and must therefore report OK even if it is continuous. The OK report is also used in fault handling to count down the fault counter.)
|
-
|
When TCM no longer requests CHECK ENGINE.
|
Fault handling:
(Refer to section “Fault diagnosis, general” for more information.)
|
-
|
CHECK ENGINE goes off and the diagnostic trouble code is cleared immediately as soon as TCM no longer requests CHECK ENGINE
|
Diagnostic help
Perform fault diagnosis on the automatic transmission.
