Rear Wheel Steering System: Other Chevrolet Silverado 2500

Yaw Rate Sensor - Voltage

1. O yaw = 2.5 volts
2. Proportional output voltage is 0.25 to 4.75 volts
3. Output is used to determine Direction of Rotation (Which Way) Rate of Rotation (How Fast)
4. Unit is sealed
5. Output Cannot Determine Absolute Position

Scheme 48

Steering Wheel Position Sensor - Digital Signal

1. 3 outputs used (Phase A, Phase B, Index Pulse)
2. Phase A & Phase B Offset PWM wave forms created when turning the wheel
3. Index pulse Signal is present only when steering wheel is within 10 degrees either side of center

Steering Wheel Position Sensor - Analog Signal

1. This is a class 2 message from the TBC
2. Voltage is at or near 2.5 volts with wheels at center
3. Voltage increases/decreases for less than one full turn (+/- 225 Degrees), then plateaus for the remainder of the travel

Scheme 49

Scheme 50

1. 3 outputs used (Phase A, Phase B, Index Pulse)
2. Phase A & Phase B. Offset PWM wave forms created when turning the wheel
3. Index pulse. Signal is present only when steering wheel is within 10 degrees either side of center

Output is used to determine Direction of Rotation and Rate of Rotation.

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Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer TESTING FOR INTERMITTENT and POOR CONNECTIONS .

Tools Required

J 24319-B Universal Steering Linkage Puller

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Scheme 56

1. Raise the vehicle.
2. Remove the tire and wheel.
3. Remove the tie rod bracket (2) retaining bolts (1) from the steering knuckle.
4. Loosen the tie rod jam nut (1).
5. Remove the nut retaining the outer tie rod end to the steering knuckle.
6. Using the J 24319-B (1), remove the outer tie rod end from the steering knuckle.
7. Remove the outer tie rod end from the inner tie rod.

1. J 44665-2 Inner Tie Rod Wrench
2. J 44665-1 Inner Tie Rod Wrench

Scheme 57

1. Raise the vehicle.
2. Remove the tire and wheel.
3. Remove the rack and pinion boot from the steering gear. Refer to «Rack & Pinion Boot Replacement»(ref-175036-S36492759012005041800000) . Important: The inner tie rod support clamp has right h and threads. The inner tie rod support nut has left h and threads. To remove the support clamp turn the clamp counterclockwise.
4. Using the J 44665-1 (1) and J 44665-2 (2) remove the inner tie rod support clamp.
5. Remove the inner tie rod (1) from the steering gear using the J 44665-2 (2).

J 22610 Service Boot Clamp Installer

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Scheme 60

1. Raise the vehicle.
2. Remove the outer tie rod from the vehicle. Refer to «Rear Wheel Steering Tie Rod End Replacement - Outer»(ref-175036-S01365022362005041800000) .
3. Remove the tie rod jam nut (2) from the inner tie rod.
4. Remove the outer clamp (1) retaining the boot (2) to the steering gear.
5. Remove the inner clamp (1) retaining the boot to the steering gear. Important: Check the boot for damage by using a light and flexing the boot to inspect for wear. If the boot is damaged replace the steering gear actuator. Refer to «Steering Gear Actuator & Cover Replacement»(ref-175036-S38907924122005041800000) .
6. Remove the boot from the steering gear.

1. J 44664 Upper Ball Joint Nut Remover
2. J 44663 Upper Ball Joint Remover

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Scheme 64

1. Raise the vehicle.
2. Remove the tire and wheel.
3. Remove the bolt (8) and nut (2) retaining the bracket to the axle.
4. Remove the bracket (7) from the vehicle.
5. Remove the bolt (4) retaining the brake hose bracket (3) to the axle.
6. Using the J 44664 (2), remove the nut (1) retaining the upper ball joint to the steering knuckle.
7. Remove the upper ball joint (3) retaining bolts (2) and stud (1).
8. Using the J 44663 (2), remove the upper ball joint stud from the steering knuckle.
9. Remove the upper ball joint (1) from the vehicle.

J 24319-B Universal Steering Linkage Puller

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Scheme 67

1. Raise the vehicle.
2. Remove the tire and wheel.
3. Remove the wheel hub and bearing. Refer to «Wheel Hub & Bearing Replacement»(ref-175036-S18820232902005041800000) .
4. Remove the upper ball joint. Refer to «Upper Ball Joint Replacement»(ref-175036-S05792732152005041800000) .
5. Remove the lower ball joint. Refer to «Lower Ball Joint Replacement»(ref-175036-S22800224912005041800000) .
6. Remove the outer tie rod retaining nut and bracket (2).
7. Disconnect the outer tie rod from the steering knuckle using the J 24319-B (1).
8. Remove the park brake cable retaining bolt (3) from the steering knuckle.
9. Remove the steering knuckle (2) from the vehicle.

J 45859 Axle Remover

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Scheme 70

1. Raise the vehicle.
2. Remove the tire and wheel.
3. Remove the brake rotor. Refer to «BRAKE ROTOR»(ref-129604-S05458896122004080600000) .
4. Remove the axle nut dust cover (4).
5. Remove the cotter pin (2) and retainer (3) from the wheel drive shaft nut.
6. Remove the wheel drive shaft retaining nut.
7. Remove the wheel hub and bearing retaining bolts.
8. Separate the wheel drive shaft from the wheel hub and bearing using J 45859 (2) or equivalent.
9. Remove the wheel hub and bearing (1) from the vehicle.