Dodge Dakota (R1). Manual — part 55
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Measure the resistance between ground and the Fused B(+) circuit.
Is the resistance below 10K ohms?
All
Yes
→
Repair the Fused B(+) circuit for a short to ground and replace the
fuse.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Blower Motor and fuse in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
5
Ensure Power Distribution Center Fuse #13 is installed.
Disconnect the Blower Motor Resistor Block harness connector.
Turn the ignition on.
Measure the voltage of the Blower Motor Common Driver circuit.
Is the voltage above 10.0 volts?
All
Yes
→
No
→
6
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Connect a jumper wire between ground and the High Blower Motor Driver circuit in
the A/C - Heater Control Module C2 harness connector.
Turn the ignition on.
Does the blower motor run at high speed?
All
Yes
→
No
→
7
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Measure the resistance between ground and the Ground circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
8
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Disconnect the Blower Motor Resistor Block harness connector.
Measure the resistance of the High Blower Motor Driver circuit between the A/C -
Heater Control Module C2 harness connector and the Blower Motor Resistor Block
harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→
Replace the Blower Motor Resistor Block in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Repair the High Blower Motor Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
217
HEATING & A/C
*BLOWER MOTOR INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
9
Turn the ignition off.
Disconnect the Blower Motor harness connector.
Disconnect the Blower Motor Resistor Block harness connector.
Measure the resistance of the Blower Motor Common Driver circuit between the
Blower Motor harness connector and the Resistor Block harness connector.
Is the resistance below 5 ohms?
All
Yes
→
No
→
Repair the Blower Motor Common Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
10
Turn the ignition off.
Disconnect the Blower Motor harness connector.
Turn the ignition on.
Measure the voltage of the Blower Motor Feed circuit.
Is the voltage above 10.0 volts?
All
Yes
→
Replace the Blower Motor in accordance with the Service Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
No
→
11
Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Turn the ignition on.
Measure the voltage of the Fused B(+) circuit.
Is the voltage above 10.0 volts?
All
Yes
→
Replace the Ignition Switch in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Repair the Fused B(+) circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
218
HEATING & A/C
*BLOWER MOTOR INOPERATIVE —
Continued
Symptom:
*BLOWER MOTOR SPEEDS INCORRECT
POSSIBLE CAUSES
BLOWER MOTOR DRIVER CIRCUIT(S) SHORTED TO GROUND
BLOWER MOTOR COMMON DRIVER CIRCUIT SHORTED TO GROUND
A/C - HEATER CONTROL MODULE
BLOWER MOTOR DRIVER CIRCUIT(S) SHORTED TO VOLTAGE
BLOWER MOTOR DRIVER CIRCUITS SHORTED TOGETHER
A/C - HEATER CONTROL MODULE - SPEEDS INCORRECT
BLOWER MOTOR DRIVER CIRCUIT(S) OPEN
BLOWER MOTOR RESISTOR BLOCK - OPEN SPEED
TEST
ACTION
APPLICABILITY
1
Turn the Blower switch off.
Turn the ignition on.
Does the blower run?
All
Yes
→
No
→
2
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Disconnect the Blower Motor Resistor Block harness connector.
Measure the resistance between ground and each of the Blower Motor Driver circuits.
Is the resistance below 10K ohms on any of the circuits?
All
Yes
→
Repair all Blower Motor Driver circuits with a resistance below
10K ohms for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→
3
Turn the ignition off.
Disconnect the Blower Motor harness connector.
Disconnect the Blower Motor Resistor Block harness connector.
Measure the resistance between ground and the Blower Motor Common Driver
circuit.
Is the resistance below 10K ohms?
All
Yes
→
Repair the Blower Motor Common Driver circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
219
HEATING & A/C
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Turn the ignition on.
Measure the voltage of each of the Blower Motor Driver circuits (cavities 2, 3, 7, and
10).
Is the voltage above 10.0 volts on each of the circuits?
All
Yes
→
No
→
5
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Disconnect the Blower Motor Resistor Block harness connector.
Measure the voltage of each of the Blower Motor Driver circuits (cavities 2, 3, 7, and
10).
Is there any voltage present?
All
Yes
→
Repair all Blower Motor Driver circuits with voltage present for a
short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→
6
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Disconnect the Blower Motor Resistor Block harness connector.
Measure the resistance between the Low Blower Motor Driver circuit and the M1,
M2, and High Blower Motor Driver circuits.
Measure the resistance between the M1 Blower Motor Driver circuit and the M2 and
High Blower Motor Driver circuits.
Measure the resistance between the M2 Blower Motor Driver circuit and the High
Blower Motor Driver circuit.
Is the resistance below 10K ohms between any of the circuits?
All
Yes
→
Repair the shorted Blower Motor Driver circuits.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
7
Turn the ignition off.
Disconnect the A/C - Heater Control Module C2 harness connector.
Disconnect the Blower Motor Resistor Block harness connector.
Measure the resistance of each Blower Motor Driver circuit between the Blower
Motor Resistor Block harness connector and the A/C - Heater Control Module C2
harness connector.
Is the resistance below 5.0 ohms on each of the circuits?
All
Yes
→
Replace the Blower Motor Resistor Block in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Repair all Blower Motor Driver circuits with a resistance above 5
ohms for an open.
Perform BODY VERIFICATION TEST - VER 1.
220
HEATING & A/C
*BLOWER MOTOR SPEEDS INCORRECT —
Continued
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст