Contents Section: Fuel Injection Systems All sections

F0:Data List Test Step 50 A/c Relay Opel Tigra A

Multec- S X 14 XE / X 16 XE (L) F0:DATA LIST

No.TECH 1 DisplayConditions for CheckingNominal ValueTrouble CodesTerminal
50A/C RELAY
Vehicles with AC:
Engine running at idle speed, operating temperature87, 88A15
AC switch OFFINACTIVE 12V
AC switch ON
ACTIVE 0V
Depress accelerator pedal briefly to full load stop (full throttle)INACTIVE 12V
Notes on Trouble-shooting:Nominal Value:Cause of fault:

(If nominal value is not attained)

· Disconnect from base:

K60 AC compressor relay

· Ignition ON

· Using multimeter, measure voltage

from: K60 base of AC compressor relay Ter. 2

to: ground

higher than 11 V· Short circuit to ground or circuit interruption

from: K60 base of AC compressor relay Ter. 2

to: S1 ignition lock Ter. 15

· F17 fuse defective (Corsa- B, Tigra)

· F20 fuse defective (Astra- F)

· Ignition OFF

· Connect test lamp:

from: K60 base of AC compressor relay Ter. 2

to: K60 base of AC compressor relay Ter. 6

· Ignition ON

· Using TECH 1, carry out:

F5:ACTUATOR TEST

A/C RELAY

alternating

test lamp ON

test lamp OFF

· Short circuit to ground or circuit interruption

from: K60 base of AC compressor relay Ter. 6

to: K57 wiring harness plug for engine control unit Ter. A15

· K57 engine control unit defective

If nominal values are attained· See Air Conditioning Checking Procedures