Ford Ranger EV. Electric Manual - part 21

LESSON 2: VEHICLE OPERATION

2-19

POWER LIMIT Warning Lamp Inputs

ER126-A

IAA

INSTRUMENT CLUSTER

POWER LIMIT
LAMP

TIM

LESSON 2: VEHICLE OPERATION

2-20

BRAKE Warning Lamp

BRAKE Warning Lamp

•

The red BRAKE Warning Lamp will illuminate during the

following conditions:

– parking brake engaged.

– low brake fluid level in the master cylinder.

– regenerative braking system (RBS) malfunction.

– anti-lock brake system (ABS) malfunction.

•

The IAA monitors several inputs and illuminates the red

BRAKE Warning Lamp if the parking brake is engaged,

there is a RBS failure, or there is a brake system concern.

ER060-A

F

E

ECON

0

2

4

6

DISTANCE
TO EMPTY

km

MILES

0

0

0

0

50

100

20

10

30

40

50

60

70

80

0 0 0 0 0 0

20

40

60

80

100

120

MPH

km/h

ON

OFF

H

C

P   R N D E

BRAKE

!

LESSON 2: VEHICLE OPERATION

2-21

ER127-A

IAA

INSTRUMENT CLUSTER

MASTER CYLINDER
PRESSURE SENSOR
(LINE PRESSURE)

RED BRAKE
WARNING LAMP

TIM (RBS)

PARKING BRAKE

MASTER CYLINDER
(FLUID LEVEL)

ABS 

MODULE

BRAKE Warning Lamp Inputs

NOTE: If the lamp illuminates, be sure the parking brake is not

engaged and the brake fluid level is correct before attempting

further diagnosis.

LESSON 2: VEHICLE OPERATION

2-22

Electric Hazard Warning Lamp

Electric Hazard Warning Lamp

•

The red Electric Hazard Warning Lamp will illuminate during the

following conditions:

– severe current leakage is detected.

– a high voltage interlock is opened.

•

If current leakage is detected, the vehicle will continue to operate.

•

To prevent possible damage to the vehicle or personal injury, the

vehicle must be repaired immediately.

•

If a high voltage interlock is opened, the emergency power off

(EPO) system will cause all high voltage to be disabled and shut

down the vehicle (for more information on EPO see Lesson 1).

•

The BCM monitors for current leakage. If current leakage is

present or a high voltage interlock is open the BCM will signal the

IAA to illuminate the Electric Hazard Warning Lamp.

ER061-A

F

E

ECON

0

2

4

6

DISTANCE
TO EMPTY

km

MILES

0

0

0

0

50

100

20

10

30

40

50

60

70

80

0 0 0 0 0 0

20

40

60

80

100

120

MPH

km/h

ON

OFF

H

C

P   R N D E