Acceleration Device Test Acura RL II

Acceleration Device Test

Note. No DTC is detected. The SH-AWD control unit has been initialized. The shift lever is in P.

Scheme 158

1. Raise the vehicle, and make sure it is securely supported.
2. Connect the HDS to the DLC (A).
3. Do the acceleration device test with the HDS.
4. Look at the results displayed on the HDS. If the acceleration ratio is lower than the normal value when decelerating is displayed, replace the rear differential center case. If the acceleration ratio is higher than the normal value when decelerating is displayed, go to step 5. If the acceleration ratio is lower than the normal value when accelerating is displayed, go to step 10 . If the acceleration ratio is higher than the normal value when accelerating is displayed, replace the SH-AWD control unit.
5. Remove the 6 mm bolt (A) from the differential (B) as shown.
6. Connect the pressure gauge (C) to the adapter, and install the assembly into the differential (B). Route the hose under the vehicle toward the front door.
7. Do the acceleration device test. When you get to the "Keep the speed constant between 22 and 28 mph" screen in the test, write down the pressure indicated on the pressure gauge. Complete the test. If the hydraulic pressure was over 8.0 kg/cm 2 , go to step 8. If the hydraulic pressure was below 8.0 kg/cm 2 , replace the rear differential center case.
8. Replace the shift solenoid.
9. Do the acceleration device test. If Normal is displayed, the problem has been fixed. If the acceleration ratio is higher than the normal value when accelerating is displayed, replace the rear differential assembly.
10. Check the differential oil level. If the oil level was low, add oil as needed, then go to step 12 . If the oil level was OK, go to step 11.
11. Do the acceleration device test. After the shift solenoid test (a portion of the acceleration device test) is complete, continue the acceleration device test. When you get to the "Keep the speed constant between 22 and 28 mph" screen, write down the pressure indicated on the pressure gauge. Complete the test. If the hydraulic pressure was less than 8.0 kg/cm 2 , go to step 12. If the hydraulic pressure was over 8.0 kg/cm 2 , replace the rear differential assembly.
12. Do the acceleration device test. Look at the results displayed on the HDS. If Normal is displayed, the problem has been fixed. If "Acceleration device is abnormal" is displayed, go to step 13.
13. Replace the shift solenoid, then do the acceleration device test. If Normal is displayed, the problem has been fixed. If "Acceleration device is abnormal" is displayed, replace the rear differential assembly.

Scheme 159

1. Park the vehicle on level ground, and turn the ignition switch to LOCK (0).
2. Use solvent and a brush to wash any oil and dirt off the differential fluid inspection oil filler plugs.
3. Remove each filler plug (A) and the sealing washer (B), then check the condition of the fluid, and make sure the fluid is at the proper level (C).
4. The fluid level must reach up the bottom of the filler plug hole. If it is below the hole, add the recommended fluid until it runs out, then reinstall the filler plug with a new sealing washer.

Scheme 160

1. Park the vehicle on level ground, and turn the ignition switch to LOCK (0).
2. Remove the filler plug (A) and the sealing washer (B). Fluid Capacity 2.66 L (2.81 US qt) at fluid change 3.11 L (3.29 US qt) at overhaul Recommended fluid: Honda ATF-Z1
3. Remove the drain plug (C) and the sealing washer (D), and drain the fluid.
4. Reinstall the drain plug with a new sealing washer.
5. Add fluid until it reaches the bottom of the filler plug hole.
6. Reinstall the filler plug with a new sealing washer.

Scheme 161

1. Park the vehicle on level ground, and turn the ignition switch to LOCK (0).
2. Remove the filler plug (A) and the sealing washer (B). Fluid Capacity 0.73 L (0.77 US qt) at fluid change 0.75 L (0.79 US qt) at overhaul Recommended fluid: Honda ATF-Z1
3. Remove the drain plug (C) and the sealing washer (D), and drain the fluid.
4. Reinstall the drain plug with a new sealing washer.
5. Add fluid until it reaches the bottom of the filler plug hole.
6. Reinstall the filler plug with a new sealing washer.

Scheme 162

1. Drain the differential fluid (see «REAR DIFFERENTIAL FLUID INSPECTION AND REPLACEMENT»(/acura/rl/ii-2004-2008/remont/differentials-drive-axles/#rear-differential) ).
2. Remove the differential fluid temperature sensor cover (A), then disconnect the differential fluid temperature sensor connector (B).
3. Remove the differential fluid temperature sensor (C).
4. Install the differential fluid temperature sensor with a new O-ring (D) in the reverse order of removal.
5. Refill the differential fluid (see «REAR DIFFERENTIAL FLUID INSPECTION AND REPLACEMENT»(/acura/rl/ii-2004-2008/remont/differentials-drive-axles/#rear-differential) ).

Scheme 163

1. Disconnect the hypoid gear speed sensor connector (A).
2. Remove the hypoid gear speed sensor (B).
3. Install the hypoid gear speed sensor with a new O-ring (C) in the reverse order of removal.