DTC Advanced Diagnostics: P16F4
DTC P16F4:Starter Cut Relay 2 Control Circuit Low Voltage

General Description

The powertrain control module (PCM) monitors the starter control system. Open load and short circuit to ground can be detected only if starter cut relay driver IC is not active. If the PCM detects a short to ground or an open in the starter cut relay 2 circuit, the PCM stores a DTC.

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

Enable Conditions
Condition
 
Vehicle
ON mode

Malfunction Threshold
The PCM detects a short to ground or an open in the starter cut relay 2 circuit for at least 0.3 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 open
Starter cut relay 2 circuit ST CUT RLY2 CL- line short to ground
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.