P1632

101401 - P1632

Information saved in
DME

Fault code
101401 - P1632

Fault text
Throttle valve, adaptation: Marginal conditions not met

Fault description
The diagnostic function monitors the throttle valve
adaptation.

Condition for fault identification
Test condition:
The fault is recognized when a required throttle valve
adaptation cannot be implemented due to failure to comply
with specified general environmental conditions.
Potential problem source(s):
- Failure to comply with specified conditions when throttle
valve adaptation routine is activated (electrical system
voltage > 10V, Terminal 15 on, engine off, no other throttle
valve diagnostic fault codes logged)
- Convenience start after programming or replacing the
DME
Terminal condition: Terminal 15
Voltage condition:
- Electrical system voltage > 10 V
Temperature condition:
- Intake air temperature > -10 °C
- Coolant temperature > -10 °C
- Coolant temperature < 142 °C
Time condition:
- 5 sec.
Other conditions:
- Engine off
- No other throttle valve diagnostic fault codes logged in
control module fault memory

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
- Determine whether throttle valve adaptation has been
prevented by diagnostic fault code entry or convenience start

Fault effect and breakdown warning
Breakdown notice:
- The engine reverts to its limp-home program, continued
vehicle operation is possible but drivability is restricted,
because power is reduced the driver should refrain from
passing maneuvers.
Possible apparent symptoms:
- Power reduction
- Engine speed governed

Driver information
Warning light:
- ECE emissions warning lamp: on
- US emissions warning lamp: on
- ECE electronic engine power reduction: on
- US electronic engine power reduction: on
- CC message: on

Service instruction
- Throttle valve adaptation is triggered following
replacement of throttle valve or DME