Dodge Ram. Manual — part 50
Symptom:
FRONT DOOR CHANNELS SHORT TOGETHER OR TO GROUND
When Monitored and Set Condition:
FRONT DOOR CHANNELS SHORT TOGETHER OR TO GROUND
When Monitored:
When the DRBIII
t performs the Speaker Output Test.
Set Condition:
Each Amplifier front door channel is shorted together or to ground.
POSSIBLE CAUSES
AMPLIFIER
FRONT DOOR SPEAKER CIRCUIT SHORTED TO GROUND
FRONT DOOR SPEAKER CIRCUITS SHORTED TOGETHER - TEST 1
FRONT DOOR SPEAKER CIRCUITS SHORTED TOGETHER - TEST 2
FRONT DOOR SPEAKER CIRCUITS SHORTED TOGETHER - TEST 3
LEFT FRONT DOOR SPEAKER
RIGHT FRONT DOOR SPEAKER
TEST
ACTION
APPLICABILITY
1
NOTE: The fault condition must be present to continue diagnosis. Use the
DRB III to perform the Amplifier Pre-test to verify the fault condition is
present before continuing diagnosis.
Turn the ignition off.
Access and disconnect the Right Front Door Speaker harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
All
Yes
→ Go To 2
No
→ Replace the Right Front Door Speaker in accordance with the
service information.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Access and disconnect the Left Front Door Speaker harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
All
Yes
→ Go To 3
No
→ Replace the Left Front Door Speaker in accordance with the
service information.
Perform BODY VERIFICATION TEST - VER 1.
197
AUDIO
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Access and disconnect the Right Front and Left Front Door Speaker harness
connectors.
Disconnect the Amplifier C2 harness connecter.
Measure the resistance between ground and each of the 4 Front Door Speaker
circuits.
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 4
No
→ Repair the Front Door Speaker circuit that measured below 1000
ohms for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Access and disconnect the Right Front and Left Front Door Speaker harness
connectors.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Left
Front Speaker (-) circuit and the following circuits: Left Front Speaker (+), Right
Front Speaker (-) and Right Front Speaker (+).
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 5
No
→ Repair the Front Door Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Access and disconnect the Right Front and Left Front Door Speaker harness
connectors.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Left
Front Speaker (+) circuit and the following circuits: Right Front Speaker (-) and
Right Front Speaker (+).
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 6
No
→ Repair the Front Door Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Access and disconnect the Right Front Speaker harness connector.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Right
Front Speaker (+) circuit and Right Front Speaker (-).
Is the resistance above 1000 ohms?
All
Yes
→ Replace the Amplifier in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Front Door Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
198
AUDIO
FRONT DOOR CHANNELS SHORT TOGETHER OR TO GROUND —
Continued
Symptom:
FRONT I/P CHANNELS SHORTED TOGETHER OR TO GROUND
When Monitored and Set Condition:
FRONT I/P CHANNELS SHORTED TOGETHER OR TO GROUND
When Monitored:
When the DRBIII
t performs the Speaker Output Test.
Set Condition:
Each Amplifier front I/P channel is shorted together or to ground.
POSSIBLE CAUSES
AMPLIFIER
CENTER I/P SPEAKER
I/P SPEAKER CIRCUIT SHORTED TO GROUND
I/P SPEAKER CIRCUITS SHORTED TOGETHER - TEST 1
I/P SPEAKER CIRCUITS SHORTED TOGETHER - TEST 2
I/P SPEAKER CIRCUITS SHORTED TOGETHER - TEST 3
LEFT I/P SPEAKER
RIGHT I/P SPEAKER
TEST
ACTION
APPLICABILITY
1
NOTE: The fault condition must be present to continue diagnosis. Use the
DRB III to perform the Amplifier Pre-test to verify the fault condition is
present before continuing diagnosis.
Turn the ignition off.
Access and disconnect the Right I/P Speaker harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
All
Yes
→ Go To 2
No
→ Replace the Right I/P Speaker in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Access and disconnect the Left I/P Speaker harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
All
Yes
→ Go To 3
No
→ Replace the Left I/P Speaker in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
199
AUDIO
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Access and disconnect the Center I/P Speaker harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
All
Yes
→ Go To 4
No
→ Replace the Center I/P Speaker in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Access and disconnect the Right I/P Speaker, Left I/P Speaker and Center I/P
Speaker harness connectors.
Disconnect the Amplifier C2 harness connecter.
Measure the resistance between ground and each of the 4 I/P Speaker circuits.
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 5
No
→ Repair the I/P Speaker circuit that measured below 1000 ohms for
a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Access and disconnect the Right I/P Speaker, Left I/P Speaker and Center I/P
Speaker harness connectors.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Left I/P
Speaker (+) circuit and the following circuits: Left I/P Speaker (-), Right I/P Speaker
(+) and Right I/P Speaker (-).
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 6
No
→ Repair the I/P Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Access and disconnect the Right I/P Speaker, Left I/P Speaker and Center I/P
Speaker harness connectors.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Left
Front Speaker (-) circuit and the following circuits: Right I/P Speaker (+) and Right
I/P Speaker (-).
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 7
No
→ Repair the I/P Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
200
AUDIO
FRONT I/P CHANNELS SHORTED TOGETHER OR TO GROUND —
Continued
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