MTC Air Conditioner - Page 93

TROUBLE DIAGNOSIS
MTC-93
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MTC
Revision: January 2005 2004 Quest
2. CHECK CIRCUIT BETWEEN REAR AIR CONTROL AND FRONT AIR CONTROL FOR OPEN OR
SHORT
1. Disconnect front air control and rear air control connectors.
2. Check continuity between front air control harness connector
M50 terminal 33 (V) and rear air control harness connector B142
terminal 5 (V).
3. Check continuity between rear air control harness connector
B142 terminal 5 (W/G) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK CIRCUIT BETWEEN REAR AIR CONTROL AND AIR MIX DOOR MOTOR (REAR) FOR OPEN
OR SHORT
1. Disconnect air mix door motor (rear) connectors.
2. Check continuity between rear air control harness connector
B142 terminal 2 (W/G) and 4 (Y) and air mix door motor (rear)
harness connector B146 terminal 2 (Y) and 3 (W/G).
3. Check continuity between rear air control harness connector
B142 terminals 2 (W/G) and 4 (Y) and ground.
OK or NG
OK >> Replace rear air control. Refer to MTC-116, "REAR AIR CONTROL" .
NG >> Repair harness or connector.
Continuity should exist.
Continuity should not exist.
LJIA0121E
Continuity should exist.
Continuity should not exist.
LJIA0122E