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TEST
ACTION
APPLICABILITY
7
Turn the ignition on.
Turn the Power switch on the A/C - Heater Control Module on.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Using a 12-volt test light connected to ground, back probe the Fused Rear Blower
Motor Relay Output circuit in the Rear Blower Motor 2-pin harness connector.
Does the test light illuminate brightly?
All
Yes
→
Go To
8
No
→
Go To
11
8
Turn the Power switch on the A/C - Heater Control Module off.
Turn the ignition off.
Using a jumper wire connected to ground, back probe the DB/OR wire in the Rear
Blower Motor 2-pin harness connector.
Turn the ignition on.
Turn the Power switch on the A/C - Heater Control Module on.
Does the blower motor run at high speed?
All
Yes
→
Go To
9
No
→
Replace the Rear Blower Motor in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
9
Turn the ignition off.
Disconnect the Rear Blower Motor 2-pin harness connector.
Disconnect the Rear Blower Motor Resistor Block harness connector.
Measure the resistance of the DB/OR wire between the Rear Blower Motor 2-pin
harness connector and the Rear Blower Motor Resistor Block harness connector.
Is the resistance below 5 ohms?
All
Yes
→
Go To
10
No
→
Repair the DB/OR wire between the Rear Blower Motor 2-pin
harness connector and the Rear Blower Motor Resistor Block
harness connector for an open.
Perform BODY VERIFICATION TEST - VER 1.
10
Turn the ignition off.
Disconnect the Rear Blower Motor Resistor Block harness connector.
Disconnect the Rear Blower Front Control Switch harness connector.
Measure the resistance of the Rear Blower Motor High circuit between the Rear
Blower Motor Resistor Block harness connector and the Rear Blower Front Control
Switch harness connector.
Is the resistance below 5 ohms?
All
Yes
→
Replace the Rear Blower Motor Resistor Block in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Repair the Rear Blower Motor High circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
581
HEATING & A/C
*REAR BLOWER MOTOR INOPERATIVE - MTC —
Continued
Summary of Contents for Caravan 2003
Page 24: ...NOTES xxiv ...
Page 64: ...NOTES 40 ...
Page 65: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 41 ...
Page 1080: ...C O N N E C T O R P I N O U T S 1056 CONNECTOR PINOUTS ...
Page 1119: ...10 2 2 BASE AUDIO SYSTEM S C H E M A T I C D I A G R A M S 1095 SCHEMATIC DIAGRAMS ...
Page 1123: ...10 3 3 FRONT ATC RHD S C H E M A T I C D I A G R A M S 1099 SCHEMATIC DIAGRAMS ...
Page 1125: ...10 4 COMMUNICATION S C H E M A T I C D I A G R A M S 1101 SCHEMATIC DIAGRAMS ...
Page 1130: ...10 6 EXTERIOR LIGHTING S C H E M A T I C D I A G R A M S 1106 SCHEMATIC DIAGRAMS ...
Page 1136: ...10 9 INTERIOR LIGHTING S C H E M A T I C D I A G R A M S 1112 SCHEMATIC DIAGRAMS ...
Page 1143: ...10 10 7 REAR BLOWER MOTOR S C H E M A T I C D I A G R A M S 1119 SCHEMATIC DIAGRAMS ...
Page 1145: ...10 11 MEMORY SYSTEM S C H E M A T I C D I A G R A M S 1121 SCHEMATIC DIAGRAMS ...
Page 1146: ...10 12 OVERHEAD CONSOLE S C H E M A T I C D I A G R A M S 1122 SCHEMATIC DIAGRAMS ...
Page 1147: ...10 13 POWER DOOR LOCKS RKE S C H E M A T I C D I A G R A M S 1123 SCHEMATIC DIAGRAMS ...
Page 1150: ...10 16 POWER LIFTGATE SYSTEM S C H E M A T I C D I A G R A M S 1126 SCHEMATIC DIAGRAMS ...
Page 1155: ...10 20 VEHICLE THEFT SECURITY SYSTEM S C H E M A T I C D I A G R A M S 1131 SCHEMATIC DIAGRAMS ...
Page 1157: ...10 21 WIPERS FRONT AND REAR S C H E M A T I C D I A G R A M S 1133 SCHEMATIC DIAGRAMS ...
Page 1158: ...NOTES 1134 ...
Page 1160: ...11 2 PCI BUS LAB SCOPE PATTERN C H A R T S A N D G R A P H S 1136 CHARTS AND GRAPHS ...