DTC Advanced Diagnostics: P16F6 (3.0L Engine)

DTC P16F6: Starter Cut Relay 2 Control Circuit High Voltage

General Description

Courtesy of HONDA, U.S.A., INC.

The starter motor is controlled by on/off of starter cut relay 1 and starter cut relay 2 to start the engine. The monitor circuit in the powertrain control module (PCM) monitors the voltage level of the ST_CUT_RLY2_CL- terminal. If the voltage level is abnormal, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type

Execution	Continuous
Sequence	None
Duration	500 milliseconds or more
DTC Type	One drive cycle, MIL off

Enable Conditions

Condition	Minimum	Maximum
12 volt battery voltage [Battery]	9.2 V	-
Starter	On
Vehicle	ON mode

[ ]: HDS Parameter

Malfunction Threshold

The ST_CUT_RLY2_CL- terminal voltage level is off (high voltage) for at least 500 milliseconds despite the PCM outputs on to starter cut relay 2.

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, the freeze data, and the on-board snapshot are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC

The Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.