Sending Unit Test; Radiator Cap Test - Honda 2002 Accord Manual

Sending Unit Test
'98-99 models:
1. Disconnect the YEL/GRN wire (A) f r o m the coolant
temperature gauge sending unit (B).
C
B
A
2. Using an o h m m e t e r , measure the change in
resistance between the positive terminal (C) and
the engine (ground) w i t h the engine cold and w i t h
the engine at operating temperature.
Temperature 133°F(56°C) 185°F ( 8 5 ° C ) -
212°F(100°C)
Resistance ( Q )
137 4 6 - 3 0
3. If the obtained readings are substantially different
f r o m the specifications above, replace the sending
unit.
Radiator Cap Test
1. Remove the radiator cap (A), wet its seal w i t h
engine coolant, then install it on the pressure tester
(B) (commercially available).
B
2. A p p l y a pressure of 9 3 - 1 2 3 kPa (0.95 - 1 . 2 5
kgf/cm 2 , 1 4 - 1 8 psi).
3. Check for a d r o p in pressure.
4. If the pressure drops, replace the cap.
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