|  |  | Results of the tests | 
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation | 
|---|
|  | Carry
out a test, steering on full lock in various conditions to check
whether the stiffness arises in one direction onlyVisually inspect the power assisted steering fluid level in the
reservoir | Continue to Step 
                              1 | Stiffness in both directions | See table 
                                 H10 | 
| Power assisted steering fluid level too low | Restore the correct level, if there are leaks,
                              See
table 
                                 X30 | 
| 1 | STEERING TIE-RODS AND ARMS CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
the condition of the steering tie-rods and arms. | Continue to Step 
                              2 | Tie-rods damaged or worn | Replace the tie-rids or balljoints 
                               Op.   4110B14 | 
| Arms damaged or worn | Replace the steering box 
                               Op.   4130A10 | 
| 2 | POWER ASSISTED STEERING PUMP CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
that the power assisted steering pump is working properly | Continue to Step 
                              3 | Belt slack | Replace the belt 
                               Op.   1092G10 | 
| Power assisted steering pump malfunction | Replace the power assisted steering pump 
                               Op.   4130B20 | 
| 3 | CHECK CORRECT OPERATION | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |