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F0:DATA LIST - TEST STEP 19 IGN./INJ. CUTOFF > < F0:DATA LIST - TEST STEP 09 CRUISE CONTR. SW

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F0:DATA LIST

 

 

 

 

The parameter COOLANT TEMP. gives an indication of the engine coolant temperature when the ignition is switched on. This information is only transferred from the engine control unit to the transmission control unit when the ignition is switched on. The COOLANT TEMP. is not normally updated during the driving cycle.

To obtain a precise value, consult the F0:DATA LIST of the relevant engine Checking Procedures.

If trouble codes for COOLANT TEMP. and TPS LOAD SIGNAL are set simultaneously, check the lead connection from the relevant engine control unit to transmission control unit K85/Ter. 55 as in F0:DATA LIST test step no. 03. Both signals are transferred via the same lead.

 

 

See F0:DATA LIST no. 03 TPS LOAD SIGNAL

 

  

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

 

16

COOLANT TEMP.

25 DT diesel engine only

 

Engine running at idle speed, operating temperature

 

 

All other engines

 

 

 

70 to 117 °C/

158 to 243 °F

1.5 to 0.5 V

73

35, 55

 

 

 

Engine running at idle speed, operating temperature

 

>40°C

 

 

 
Notes on trouble-shooting:

Nominal value:

Cause of fault:

(If nominal value is not attained)

 

 
Note:
 

 

 

Related Literature Units
-Trouble Code Table - Trouble Code 73 WRONG ENGINE TEMP. SIGNAL BY DDE

F0:DATA LIST - TEST STEP 19 IGN./INJ. CUTOFF > < F0:DATA LIST - TEST STEP 09 CRUISE CONTR. SW