Vauxhall Workshop Service and Repair Manuals

Test Step

Fault Symptoms

Possible Cause of Fault

Notes for Remedy

24

No downshift from 4-3 with kickdown

·   Kickdown switch or circuit defective

·   Load signal too low

·   Vehicle speed too high

·   Solenoid valve for 1-2/3-4 shift or shift valve in valve body blocked

·   Fluid leak in fluid circuit of accumulator for brake band B 1 (AF 13/22)

·   Using TECH 1, check Data List parameters for "kickdown switch"

     (section 5.4 no. 16)

·   Using TECH 1, check Data List parameters for full load position; check accelerator cable position

·   Carry out Actuator Test with TECH 1 (section 5.6 no. 03); replace valve body with pressure regulator

·   Locate/replace leaky part

     (AF 13/22)

See Service Instructions