Vauxhall Workshop Service and Repair Manuals

Test	TECH 1	Notes	Nominal Values	Possible
Step	Display			Trouble
No.				Codes
09	COOLANT TEMP.	Engine at idle speed	87 to 114 °C/189 to 237 °F
			1.06 to  0.59 V	14, 15

 

 

Trouble-shooting:                                 Nominal Value:                       Cause of Fault:

(If nominal value is not attained)

Ignition ON

 

· Remove temperature sensor plug

 

 

20 XE	C 20 XE
20 XEJ
-39 °C/-38 °F	< -30 °C/-22 °F
> 4.9 V	> 4.9 V

 

 

· Short circuit between signal

lead and ground lead in wiring harness

 

· Control unit defective

 

· Short circuit both contacts in

temperature sensor plug using

adapter cables from KM-609

 

 

20 XE	C 20 XE
20 XEJ
>151 °C/304 °F	> 188 °C/370 °F
	< 0.1 V

 

 

· Lead interruptions from

- Control unit Ter. 45 to temperature sensor

- Temperature sensor to ground

 

· Control unit defective

 

                                                                                  If nominal values are attained -----> · Temperature sensor defective

 

Coolant temperature sensor checking values:

15 °C to 30 °C/59 °F to 86 °F: 1.3 to 3.6 kW

80 °C/176 °F: 250 to 360 W

 

 

Notes on Trouble Codes 14 and 15:

 

 

Model Year '88 Vehicles:

 

When trouble code 14 is stored, the control unit takes a replacement value of -33 °C/-26 °F.

This leads to enrichment of the system and the engine may cut out after a short period of time.

Trouble code 15 is not activated in the control unit here, which means that faults that occur are not recognized by the control unit and are not displayed by the telltale in the instrument panel.