Country Code, Average Speed/Fuel and Range Display Check

FUNCTION SELECTORS SWITCH:

Country code, checking
- switch ignition OFF
- press reset button and hold
- switch ignition ON
- release reset button
- push function selectors switch and hold until end of selections

COUNTRY CODE DISPLAY:

- check country code display (illustration)
^ EU for Europe GB for Great Britain US for USA CA for Canada* SA for Saudi Arabia* JA for Japan

*The display for country codes CA/SA alternates two times per second.
If code is displayed, - turn ignition OFF
- check average speed (0 mph) page

If correct country code is NOT displayed, - replace computer module

Function Selector Switch:

Average speed display (0 MPH), checking

Work sequence

- switch ignition ON
- select 0 MPH function with function selector switch
- press reset button for 2 seconds (while driving vehicle)

Instantaneous Speed Display:

- check display
^ instantaneous speed (speed you are travelling at while driving) is displayed

If instantaneous speed is displayed, - check average fuel consumption (0 MPG) display
If instantaneous speed is NOT displayed, - check function selector switch

Note

Speed must be displayed on speedometer.

If speed is displayed on speedometer, - repair break in wiring using current flow diagram

If speed is NOT displayed on speedometer, - check speedometer sensor

Function Selector Switch:

Average fuel consumption display (0 MPG), checking

Work sequence

- switch ignition ON
- select 0 MPG function with the function selector switch
- press reset button for 5 seconds (while driving)

Instantaneous Average Fuel Consumption Display:

- check display
^ instantaneous average fuel consumption

If average fuel consumption is correctly displayed, - check range (Mi).
If average fuel consumption is NOT displayed, - check fuel consumption sender

Connector:

Note

If fuel consumption reading is 200 mpg (5 1/100 km) after repeated resetting, there is a break in wiring of contact 3 of fuel consumption sender or wires from contact 1 and 3 are reversed.

If fuel consumption reading is 5 mpg, (0 1/100 km) there is a break in wiring from contacts 1 and/or 2 on the fuel consumption sender.

If consumption display NOT OK, - check fuel consumption sender

Reset Button:

Range display, mi------> ^
(km------> ^), checking

Note

In the following test, computer calculations are based on an average consumption of 10 1/100 km regardless of the display units.

Example: with 60 liters fuel in the tank, 600 km is displayed

Work sequence
- switch ignition OFF
- press reset button and hold
- switch ignition ON
- release reset button

Fuel Tank Content Display:

- check display
^ fuel tank content x 10

If fuel tank content x 10 is displayed, - check fuel consumption correction factor.

If fuel tank content x 10 is NOT displayed, fuel tank content must be indicated on fuel gauge in instrument cluster.

If fuel tank content is NOT indicated by gauge, - check fuel gauge.

If fuel tank content is indicated on gauge, - check wiring between fuel gauge and computer using current flow diagram

If wiring is OK, - replace computer