Brake Warning Indicator; Safety Belt Warning Indicator; Malfunction Indicator Lamp (Mil); Powertrain Malfunction (Wrench) Warning Indicator - Ford Mustang 2005 Workshop Manual

2005 Mustang Workshop Manual
The PCM monitors pressure in the fuel evaporative system and detects massive or critical losses of pressure. When a critical loss of pressure in the fuel evaporative system is detected,
the PCM provides a message over the communication network and the instrument cluster illuminates the check fuel cap warning indicator.

BRAKE Warning Indicator

The brake warning indicator alerts the driver if any of the following brake system conditions are present: the parking brake is set, the brake fluid level is low, the anti-lock brake system
(ABS) module has detected a base brake system failure, there has been a loss of communication between the instrument cluster and the SJB, or there has been a loss of communication
between the instrument cluster and the ABS module.

Safety Belt Warning Indicator

The safety belt warning indicator informs the driver that their safety belt and/or the front passenger's safety belt is unbuckled. The first 65 seconds after the ignition switch transitions from
OFF or ACC to RUN or START, the safety belt warning indicator and the associated chime are used as a reminder to the driver that the front row safety belts have not been buckled. In
this first 65 seconds the indicator illuminates when the driver and/or front passenger safety belt is unbuckled (with a person in the seat) and turns off whenever the safety belt(s) in the
occupied front row seat(s) are buckled. The indicator illuminates again if a safety belt is unbuckled after both have been buckled and the 65 seconds has not yet expired. After 65
seconds, the indicator turns off regardless of the front row safety belts status.
Anti-lock Brake System (ABS) Warning Indicator
The ABS warning indicator informs the driver of a malfunction in the ABS system. Inputs are provided by the ABS module over the communication network. For additional information,
refer to Section 206-09.

Malfunction Indicator Lamp (MIL)

The MIL is illuminated when a diagnostic trouble code (DTC) is detected by the PCM. The instrument cluster receives the MIL data from the PCM through the communication network.

Powertrain Malfunction (Wrench) Warning Indicator

The PCM monitors the ETC system and provides the instrument cluster with the ETC status over the communication network. When a system concern is detected, the PCM provides the
instrument cluster with a signal commanding the instrument cluster to illuminate the powertrain malfunction (wrench) warning indicator or display a message if equipped with a message
center.
High Beam Indicator
When the high beams are turned on, the SJB sends a signal to the instrument cluster through the communication network to illuminate the high beam indicator.
Turn Indicators
The SJB sends a message to the instrument cluster over the communication network when the multifunction switch is in the RH and LH turn position. When the multifunction switch is in
the RH or LH turn position, the instrument cluster flashes the RH or LH turn indicators.
Air Bag Warning Indicator
The air bag warning indicator is used to provide a status of the supplemental restraint system. The instrument cluster receives a message from the restraint control module (RCM) over
the hard wired circuits. If an air bag system concern is detected, a DTC is logged and the RCM sends a message to the instrument cluster to illuminate the air bag warning indicator.
Speed Control Indicator
The instrument cluster receives the speed control data from the PCM through the communication network. When the speed control is engaged, the PCM provides a signal to the
instrument cluster to illuminate the speed control indicator.
Charging System Warning Indicator
The PCM constantly monitors the generator regulator output. When the PCM detects a continuous high or low output signal, or when the ignition switch is ON and the engine is OFF, the
PCM sends a message over the communication network to the instrument cluster to illuminate the charging system warning indicator. When the ignition switch is in the ON position, with
the engine running, and the PCM determines that the set point for the regulator has been met, the PCM sends a message to the instrument cluster to turn off the charging system warning
indicator.
Failsafe Cooling Warning Indicator
The failsafe cooling warning indicator informs the driver the engine coolant is overheating due to loss of engine coolant fluid or other cause, and the PCM is taking on limp home strategy.
The other purpose is to inform the driver the engine cannot be cooled enough with the limp home strategy and the engine is about to be shut down by the PCM. The failsafe cooling
information is sent from the PCM to the instrument cluster to illuminate the failsafe cooling warning indicator.
Overdrive Off (O/D OFF) Indicator
The instrument cluster receives the overdrive off signal from the PCM through the communication network. When the transmission overdrive is selected off, the overdrive off switch
provides a ground signal to the PCM. The PCM, upon receipt of the overdrive off ground signal, provides an overdrive off signal to the instrument cluster and the instrument cluster
illuminates the overdrive off indicator.
Daytime Running Lamp (DRL) Indicator
When the DRL is on, the SJB sends a message over the communication network, to the instrument cluster, illuminating the DRL indicator.
Low Oil Pressure Warning Indicator
The SJB is hardwired to the oil pressure switch. The oil pressure switch unit consists of a diaphragm and contact points, which are normally open. When there is low (under 41 kPa [6 psi])
or no oil pressure, the oil pressure switch remains open, removing the ground to the SJB. When sufficient oil pressure exists, the oil pressure switch closes, providing a ground signal to
the SJB. The SJB monitors the oil pressure ground signal and sends a message to the instrument cluster to turn the indicator on or off according to the engine oil pressure.
Door/Trunk Ajar Warning Indicator
The door ajar indicator informs the driver that one or more doors, or the decklid is open while the ignition switch is in the RUN position. When a door or decklid is ajar, the SJB sends a
message to the instrument cluster to illuminate the door ajar indicator.
Traction Control Indicator
The traction control indicator flashes when the vehicle traction control is in active mode or is being controlled by the ABS module. The instrument cluster receives the traction control
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11/14/2009