Dodge Ram. Manual — part 57
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Power Amplifier harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and any speaker (+) circuit.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→ Repair the speaker (+) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the Power Amplifier harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and any speaker (-) circuit.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→ Repair the speaker (-) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Power Amplifier harness connector.
Disconnect the Radio harness connector.
Measure the resistance between each speaker (+) circuit and each speaker (-) circuit.
Is the resistance below 1000.0 (1K) ohms for any of the measurements?
All
Yes
→ Repair the speaker circuits shorted together.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 6
6
If there are no possible causes remaining, view repair.
All
Repair
Replace the Radio.
Perform BODY VERIFICATION TEST - VER 1.
225
AUDIO
POWER AMP SHUTDOWN - PREMIUM AUDIO SYSTEM —
Continued
Symptom:
RADIO AND NAV GPS ANTENNA NOT CONNECTED
POSSIBLE CAUSES
BAD ANTENNA CONNECTION
ANTENNA
RADIO
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Antenna connectors.
Inspect the Antenna connections.
Was the Antenna connections clean and tight?
All
Yes
→ Go To 2
No
→ Repair the Antenna connections as needed.
Perform BODY VERIFICATION TEST - VER 1.
2
Refer to the Audio System in the service information and test the Antennas in
accordance with the service procedure.
Are the Antennas ok?
All
Yes
→ Go To 3
No
→ Repair or replace the Antenna assemblies as necessary.
Perform BODY VERIFICATION TEST - VER 1.
3
NOTE: Reconnect all previously disconnected components.
NOTE: Move vehicle outside approximately 30ft from any structure.
Turn the ignition and Radio on.
With the DRBIII
t, erase the audio DTC’s and operate the radio and the navigation
system.
With the DRBIII
t, read the audio DTC’s.
Did this DTC reset?
All
Yes
→ Replace the Radio in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
226
AUDIO
Symptom:
REAR SPEAKERS SHORT TOGETHER OR TO GROUND
When Monitored and Set Condition:
REAR SPEAKERS SHORT TOGETHER OR TO GROUND
When Monitored:
When the DRBIII
t performs the Speaker Output Test.
Set Condition:
Each Amplifier rear channel is shorted together or to ground.
POSSIBLE CAUSES
AMPLIFIER
LEFT REAR SPEAKER
REAR SPEAKER CIRCUIT SHORTED TO GROUND
REAR SPEAKER CIRCUITS SHORTED TOGETHER - TEST 1
REAR SPEAKER CIRCUITS SHORTED TOGETHER - TEST 2
REAR SPEAKER CIRCUITS SHORTED TOGETHER - TEST 3
RIGHT REAR 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 Rear 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 Rear Speaker in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Access and disconnect the Left Rear 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 Rear Speaker in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
227
AUDIO
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Access and disconnect the Right Rear and Left Rear Speaker harness connectors.
Disconnect the Amplifier C2 harness connecter.
Measure the resistance between ground and each of the 4 Rear Speaker circuits.
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 4
No
→ Repair the Rear 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 Rear and Left Rear Speaker harness connectors.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Left Rear
Speaker (-) circuit and the following circuits: Left Rear Speaker (+), Right Rear
Speaker (-) and Right Rear Speaker (+).
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 5
No
→ Repair the Rear Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Access and disconnect the Right Rear and Left Rear Speaker harness connectors.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Left Rear
Speaker (+) circuit and the following circuits: Right Rear Speaker (-) and Right Rear
Speaker (+).
Is the resistance above 1000 ohms for each of the measurements?
All
Yes
→ Go To 6
No
→ Repair the Rear Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Access and disconnect the Right Rear Speaker harness connector.
Disconnect the Amplifier C2 harness connecter.
At the Amplifier C2 harness connector, measure the resistance between the Right
Rear Speaker (+) circuit and Right Rear Speaker (-) circuit.
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 Rear Speaker circuits that are shorted together.
Perform BODY VERIFICATION TEST - VER 1.
228
AUDIO
REAR SPEAKERS SHORT TOGETHER OR TO GROUND —
Continued
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