DTC Advanced Diagnostics: P16F6
DTC P16F6:Starter Cut Relay 2 Control Circuit High Voltage

General Description

The short to power in starter cut relay circuit can be detected only if the starter driver is active. The monitoring is done by the powertrain control module (PCM). To check both starter relays, the sequence of switching starter driver off (means which starter driver has to be switched off first) is changed at every start. The switch off sequence for starter driver is changed at the end of every starter operation. If the PCM detects a short circuit to power at starter cut relay 2, a DTC is stored.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
0.26 second or more
DTC Type
One drive cycle, MIL off

Enable Conditions
Condition
 
Vehicle
ON mode

Malfunction Threshold
The PCM detects a short circuit to power at starter cut relay 2 circuit for at least 0.26 second.

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
Starter cut relay 2 circuit ST CUT RLY2 CL- line short to power
PCM internal circuit failure

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC
The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.