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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1036 (Suspension Control System - Suspension Damping) >> Diagnostic Information and Procedures >> One Shock Does Not Operate

One Shock Does Not Operate

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
One Shock Does Not Operate

Step Action Value(s) Yes No
Schematic Reference: Suspension Controls Schematics 
Connector End View Reference:  Suspension Controls Connector End Views  
1 Did you review the system circuit description and perform the necessary inspections? - Go to Step 2  Go to Symptoms - Selectable Ride 
2 Verify the fault is present.
Does the system operate normally?
- Go to Testing for Electrical Intermittents in Wiring Systems Go to Step 3 
3
  1. Disconnect the connector at the suspect shock.
  2. Turn ON the ignition, with the engine OFF.
  3. Ensure the selectable ride switch is in the ON or FIRM position.
  4. Using the J 35616  Adapter, connect a test lamp between the selectable ride switch control circuit of the suspect shock to a good ground. Refer to Circuit Testing in Wiring Systems.
Does the test lamp illuminate?
- Go to Step 4  Go to Step 8 
4 Using the J 35616  , connect a test lamp between ground of the suspect shock to a battery positive voltage circuit. Refer to Circuit Testing in Wiring Systems.
Does the test lamp illuminate?
- Go to Step 5  Go to Step 9 
5
IMPORTANT: Take care not to damage the pins in the connector.
Using a DMM and J 35616  , measure the resistance of the suspect shock.
  • Front-The red probe to the center pin of the shock and the black probe to the rod of the shock.
  • Rear-The red probe to terminal A, and the black to terminal B.
Does the resistance measure near the specified range?
11-21 Ω Go to Step 6  Go to Step 7 
6
  1. Inspect for corrosion within the shock connector. Refer to Connector Repairs in Wiring Systems.
  2. Reconnect the shock connector.
Did you find and correct the condition?
- Go to Step 10  -
7 Replace the shock absorber. Refer to Shock Absorber Replacement (4WD)Shock Absorber Replacement (RWD) in Front Suspension or Shock Absorber Replacement in Rear Suspension.
Did you complete the replacement?
- Go to Step 10  -
8 Repair the open in the selectable ride switch control circuit between the shock and the engine wiring harness junction block. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
- Go to Step 10  -
9 Repair the open in the shock ground circuit. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
- Go to Step 10  -
10 Operate the system in order to verify the repair.
Did you correct the condition?
- System OK Go to Step 3