vauxhall Workshop Repair Guides

Vauxhall Workshop Service and Repair Manuals

Checking with Diagnostic Switch KM-640 > < Table 5 - Test Step 02 CHECK IDLE AIR CONTROL VALVE

 

 

 

 

 

 

No.

TECH 1

Checking Conditions

Nominal Values

Trouble

Terminal

 

Display

 

 

Codes

 

 

 

 

 

 

 

 

 

 

 

 

 

03

CHECK

CONNECT TEST SPARK PLUG

 

-

 

 

IGNITION SPARK?

After actuation of the "YES" key,

Ignition spark visible

 

D 4

 

(YES/NO)

2 ignitions/sec. must be triggered

at the checking spark

 

 

 

 

at the checking spark plug.

plug.

 

 

 

 

 

 

 

 

 

 

Trouble-shooting:                                 Nominal Value:                     Cause of Fault:

(If nominal value is not attained)

 

Ignition ON, TECH 1 in Actuator Test mode "F5", test step 03

 

· Measure voltage at control                               Alternating display                          · Connecting line has short circuit to ground

unit K 100 Ter. D 4 to                                         0.02 to 0.8 V                                      - Connecting line has loose contact in plug

ground                                                                  or                                                           K 100 Ter. D 4

(at control unit plug!)                                          Display oscillograph                       · Control unit defective

image (square signal

with 2 Hz visible)

 

· Measure voltage at ignition                              Alternating display                          · Connecting line has lead interruption

module K 20 Ter. 4 to ground                          0.02 to 0.8 V

(at ignition module plug K 20!)                          or

Measuring range: (20 V/AC)                            Display oscillograph

image (square signal

with 2 Hz visible)

 

· Check voltage at ignition module                    Primary voltage OK                        · Check ground connection at ignition module

with TECH 80 K 20 Ter. 1                                                                                                K 20 Ter. 2 to 31

- Check voltage at ignition module K 20 Ter. 3 to 15

 

· Ignition module defective

 

Checking with Diagnostic Switch KM-640 > < Table 5 - Test Step 02 CHECK IDLE AIR CONTROL VALVE