Steering System: Overview Dodge Avenger II рестайлинг

OPERATION

The Steering Control Module (SCM) communicates over the Local Interconnect Network (LIN) data bus with other electronic modules in the vehicle and/or a diagnostic scan tool. The horn switch circuits pass through the clockspring to the Cab Compartment Node (CCN) and the CCN sends a CAN message to the Totally Integrated Power Module (TIPM) to control the horn. The CCN stores Diagnostic Trouble Codes (DTC's) for the SCM. The right (wiper) multi-function switch has several inputs to the CCN.

The SCM is connected to a fused B(+) circuit and receives a path to ground at all times. These connections allow it to remain functional regardless of the ignition switch position. The driver airbag squib circuits of the clockspring, the horn, and the speed control switch circuits pass through the SCM, but the SCM does not monitor, and has no control outputs related to these circuits. Any other input to the SCM that would cause a vehicle system to function but does not require that the ignition switch be in the On position, such as turning on the lights or sounding the horn, prompts the SCM to wake up and transmit on the CAN data bus.

The most reliable, efficient, and accurate means to diagnose the SCM, the CAN data bus, the hard wired inputs or the electronic communication related to SCM operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

The integral SCM is not available for separate service replacement. If found inoperative or defective, the entire left (lighting) multi-function switch must be replaced. Refer to SWITCH, MULTIFUNCTION, LEFT, REMOVAL .

DESCRIPTION

The recommended fluid for the power steering system is Mopar® Power Steering fluid + 4 or Mopar® ATF+4 Automatic Transmission Fluid. Both fluids have the same material standard specifications (MS-9602).

Mopar® ATF+4 (and Mopar® Power Steering fluid + 4), when new, is red in color. ATF+4 is dyed red so it can be identified from other fluids used in the vehicle such as engine oil or antifreeze. The red color is not permanent and is not an indicator of fluid condition. As the vehicle is driven, ATF+4 will begin to look darker in color and may eventually become brown. THIS IS NORMAL. ATF+4 also has a unique odor that may change with age. Consequently, odor and color cannot be used to indicate the fluid condition or the need for a fluid change.

The pulley mounted on power steering pumps used on six cylinder engines can serviced separately from the pump. It has a center hub incorporating a flange used for pump removal. The pulley used on pumps mounted on four cylinder engines is not serviced separately.

Scheme 1

Scheme 2

1. Remove power steering pump from engine. Refer to «PUMP, REMOVAL»(ref-485479-S33408543222012071300000) . CAUTION: Do not hammer on power steering pump pulley or shaft to remove power steering pump pulley. Damage to pulley and power steering pump will occur. CAUTION: It is very important to use Puller (special tool #9962, Puller, P/S Pulley), to remove pulley from power steering pump shaft. Use of other pullers can damage or break pulley and pump shaft.
2. Coat Screw-Drive (1) with lubricant and thread into Puller Body (2). NOTE: Two Buttons come with Puller kit ((special tool #9962-3, Button, Thrust) and (special tool #9962-4, Button, Thrust)). Be sure to use Button that best fits end of pump shaft to avoid damage to Button or pump shaft.
3. Insert Button (special tool #9962-4, Button, Thrust) (4), into end of Screw-Drive. Be sure not to misplace ball bearing that resides behind Button.
4. Assemble Puller (special tool #9962, Puller, P/S Pulley), over end of pump shaft and pulley hub. Place Button on end of Screw-Drive against pump shaft. Assemble Collets (special tool #9962-2, Collet, Half, Pulley Remover) (3), surrounding Puller Body (1) and pulley hub flange, then slide the Collet Sleeve over the Collets. Hand tighten Screw-Drive (2) taking up any slack in Puller.
5. Hold Puller Body stationary while turning Screw-Drive until pulley is removed from power steering pump shaft.

Note. Inspect pulley. Replace if pulley is bent, cracked, or loose.

Scheme 3

Scheme 4

1. Place power steering pump pulley (2) squarely on end of power steering pump shaft.
2. Place Installation Spacer (special tool #6936, Spacer) (1), on top of pump pulley (2). NOTE: Later build pumps feature a shaft with internal threads that are not as deep as earlier production, thus requiring a stack of washers, approximately 13 mm (0.5 in.) thickness (3), placed over Spacer (special tool #6936, Spacer) (2), before mounting Installer (special tool #C-4063C, Installer, P/S Pulley) (1) on the pump. To know if a replacement pump requires the stack of washers, measure the depth of the shaft hole. A later build pump will have a depth of 20 mm (0.78 in.) while an earlier build pump will have a depth of 32 mm (1.25 in.).
3. As necessary (see above note), place a stack of washers approximately 13 mm (0.5 in.) thickness (3) over Spacer (special tool #6936, Spacer) (2). NOTE: It is important to use Forcing Screw (special tool #C-4063-2, Forcing Screw) when performing this procedure.
4. Thread Installer (special tool #C-4063C, Installer, P/S Pulley) (1), completely into internal threads of power steering pump shaft, then rotate Installer Nut down against washers (as necessary) and Spacer (2) on pump pulley.
5. Ensuring that the tools and pulley remain aligned with pump shaft, tighten Installer Nut, forcing pulley onto power steering pump shaft until Spacer (2) comes in contact with end of pump shaft. When Spacer (2) is against shaft of power steering pump, Installer (1) Nut will no longer rotate.
6. Install power steering pump on engine. Refer to «PUMP, INSTALLATION»(ref-485479-S26307736192012071300000) .