Air Pump (W/ Secondary Air Injection System) Inspection

Check the heater resistance.

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   1 (APH+) - 3 (APHG)	-20°C (-4°F)	3.6 to 17.6 Ω
   	-10°C (14°F)	3.4 to 16.5 Ω
   	0°C (32°F)	3.1 to 15.4 Ω
   	10°C (50°F)	2.8 to 14.3 Ω
   	20°C (68°F)	2.7 to 13.2 Ω

   Text in Illustration

   *a	Component without harness connected (Air pump)

   If the result is not as specified, replace the air pump assembly.