Diagnosis Procedure

Diagnosis Procedure

1. CHECK WITH SELF DIAGNOSTIC RESULT FUNCTION

   1. CONSULT

      1. Select “Self Diagnostic Result” mode of “HVAC”.

      2. Check DTC.

      Note:

      If DTC is displayed along with DTC U1010–49, first diagnose this code. Refer to DTC Diagnosis Procedure.

   Is any DTC No. displayed?

   YES >>

   Perform diagnosis for the applicable DTC. Refer to DTC Index.

   NO >>

   GO TO 2.

2. CHECK LIN (A/C SWITCH ASSEMBLY → A/C AMP.) CIRCUIT CONTINUITY

   1. 1. Ignition switch OFF.

      2. Disconnect the A/C switch assembly connector and the A/C amp. connector.

      3. Check continuity between A/C switch assembly harness connector and A/C amp. harness connector.

         A/C switch assembly		A/C amp.		Continuity
         Connector	Terminal	Connector	Terminal
         M59	8	M82	68	Yes

      4. Check continuity between A/C switch assembly harness connector and ground.

         A/C switch assembly		—		Continuity
         Connector	Terminal
         M59	8	Ground		No

   Is the inspection result normal?

   YES>>

   Perform trouble diagnosis for the A/C switch assembly. Refer to DTC Diagnosis Procedure.

   NO>>

   Repair harness or connector.