Ford Ranger EV (2001 year). Manual - part 45

211-02-1

211-02-1

Power Steering

Manual Table of Contents

SECTION 211-02 Power Steering

VEHICLE APPLICATION:

Ranger EV

CONTENTS

PAGE

SPECIFICATIONS ....................................................................................... 211-02-2

DESCRIPTION AND OPERATION

Power Steering ........................................................................................ 211-02-2
Power Steering — Postal Ranger EV .............................................................. 211-02-2

DIAGNOSIS AND TESTING

Power Steering ........................................................................................ 211-02-3

Electrical Schematic ............................................................................... 211-02-3
Inspection and Verification ........................................................................ 211-02-3
Pinpoint Tests ....................................................................................... 211-02-4
Symptom Chart ..................................................................................... 211-02-4

REMOVAL AND INSTALLATION

Power Steering Assembly ........................................................................... 211-02-9
Power Steering Gear ............................................................................... 211-02-10
Power Steering Gear — Postal Ranger EV ..................................................... 211-02-13
Power Steering Pump Hoses — Pressure Hose ............................................... 211-02-14
Power Steering Pump Hoses — Pressure Hose - Postal Ranger EV ...................... 211-02-16
Power Steering Pump Hoses — Return Hose ................................................. 211-02-18
Power Steering Pump Hoses — Return Hose - Postal Ranger EV ......................... 211-02-19
Power Steering Pump Hoses — Supply Hose ................................................. 211-02-21
Power Steering Pump Hoses — Supply Hose - Postal Ranger EV ........................ 211-02-22
Power Steering Reservoir.......................................................................... 211-02-23
Power Steering Reservoir — Postal Ranger EV ............................................... 211-02-24
Steering Wheel Sensor............................................................................. 211-02-24

211-02-2

211-02-2

Power Steering

SPECIFICATIONS

Torque Specifications

Torque Specifications

Description

Nm

Lb-Ft

Lb-In

Description

Nm

Lb-Ft

Lb-In

Power Steering

22

16

—

A/C Compressor Bolts

22.5

16.5

— 

Assembly Nuts

A/C Compressor

22.5

16.5

—

Power Steering

6

—

53.5

Bracket Bolts

Reservoir Screws

Line Clamp Bolt

12

—

107

Return Hose to Steering

37

27

—

Pressure Hose to Pump

40

29.5

—

Gear Fitting

Fitting

Steering Wheel Sensor

2.5

—

22

Pressure Hose to

37

27

—

Bolts

Steering Gear Fitting

(Continued)

The power steering pump can be heard when the

DESCRIPTION AND OPERATION

vehicle is turned on and the steering wheel is turned

Power Steering

while the vehicle is stationary. This will cause the
pump to operate at full output. Once the steering
wheel is released, the pump will return  to normal.
At temperatures lower than -6.7

°

C (20

°

F), the pump

may take up to 30 seconds before it is able to
provide full assist.

Power Steering — Postal Ranger EV

Item

Description

1

Power Steering Reservoir 

2

Power Steering Assembly

3

Steering Gear

The power steering system on the Electric Ranger is
composed of a steering gear and steering linkage
from the Ranger 4x4. Pressure for the power
steering is supplied by an electrically operated

Item

Description

pump. A steering wheel sensor is mounted on the

1

Power steering reservoir 

column to provide turning information to the power

2

Power steering assembly

steering pump. An electronic controller receives the

3

Steering gear

steering wheel sensor input and vehicle speed
information from the traction inverter module
(TIM). Based upon this information, the electronic
controller  varies the pump output to meet current
vehicle needs.

211-02-3

211-02-3

Power Steering

DESCRIPTION AND OPERATION (Continued)

The power steering system on the Postal Ranger EV

The power steering pump can be heard when the

is composed of a steering gear and steering linkage

vehicle is turned on and the steering wheel is turned

from the Explorer. Pressure for the power steering

while the vehicle is stationary. This will cause the

is supplied by an electrically operated pump. A

pump to operate at full output. Once the steering

steering wheel sensor is mounted on the  column to

wheel is released, the pump will return  to normal.

provide turning information to the power steering

At temperatures lower than -6.7

°

C (20

°

F), the pump

pump. An electronic controller receives the steering

may take up to 30 seconds before it is able to

wheel sensor input and vehicle speed information

provide full assist.

from the traction inverter module (TIM). Based
upon this information, the electronic controller
varies the pump output to meet current vehicle
needs.

Electrical Schematic

DIAGNOSIS AND TESTING

Power Steering

Refer to Electrical and Vacuum Troubleshooting
Manual, Cell 43, Electronic Power Steering for

Diagnostic Trouble Code (DTC) Definition

schematic and connector information.

The following DTC relates to the power steering

Inspection and Verification

system:

Refer to 

 Section 100-07

.

•

DTC C1778 Power Steering Failure 
— The power steering assembly has a fault line

that it uses to notify the interface adapter
assembly (IAA) module when a power
steering system fault occurs. The power
steering assembly outputs a 12-volt signal over
the fault line when there is no  fault and pulls
it low (0 volts) when it detects a fault. The
IAA module generates DTC C1778 if it
detects the power steering fault line is low for
more than 30 seconds with the power steering
assembly enabled. The signal stays low until
the concern  has been corrected. 

211-02-4

211-02-4

Power Steering

DIAGNOSIS AND TESTING (Continued)

Symptom Chart

Symptom Chart

Condition

Possible Sources

Action

•

DTC C1778 Power Steering

•

Circuit(s). 

•

GO to Pinpoint Test A. 

Failure 

•

Interface adapter assembly

(IAA) module. 

•

Power steering assembly. 

•

High-voltage fuse. 

•

High-voltage power

distribution box (HVPDB). 

•

No Power Steering Assist 

•

Circuit(s). 

•

GO to Pinpoint Test A. 

•

Interface adapter assembly

(IAA) module. 

•

Power steering assembly. 

•

High-voltage fuse. 

•

High-voltage power

distribution box (HVPDB). 

•

More Than Usual Steering

•

Power steering fluid level. 

•

GO to Pinpoint Test B. 

Effort Required to Turn

•

Tire pressure. 

Steering Wheel (Power

•

Steering alignment. 

Steering Pump Speed Does

•

Steering gear. 

Not Increase While Turning

•

Power steering assembly. 

the Steering Wheel) 

•

Circuit(s). 

•

Steering wheel sensor. 

•

Steering Effort Easier Than

•

Steering alignment. 

•

GO to Pinpoint Test C. 

Normal at High Speeds 

•

Steering gear. 

•

Power steering assembly. 

•

Circuit(s). 

•

Steering Wheel Shudder 

•

Power steering fluid level. 

•

GO to Pinpoint Test D.

•

Air in system. 

Pinpoint Tests

Special Tool(s)

104-Pin Breakout Box (BOB) 418-049 (014-00950) or

equivalent 

Vacuum Tester 014-R1054 or equivalent

High Voltage Insulated Safety Gloves 100-F036 or

equivalent

Face Shield 100-F035 or equivalent

PINPOINT TEST A: DTC C1778 POWER STEERING FAILURE

TEST STEP

ACTION TO TAKE

A1 CHECK FOR MULTIPLE AUXILIARY LOAD FAILURE

•

With key ON, measure the voltage of the auxiliary battery. 

Yes =

GO to A2.

•

Is the voltage greater than 13 volts?

No =

REFER to Multiple

Auxiliary Load Failure

Diagnosis in 

 Section

414-03A 

 or 

 Section

414-03B

.

A2 VERIFY SYMPTOM

(Continued)