Dodge Ram. Manual — part 56
Symptom:
PCI FAILURE
When Monitored and Set Condition:
PCI FAILURE
When Monitored:
When the DRBIII
t performs the PCI Amplifier Test.
Set Condition:
When the Amplifier detects a fault with the PCI circuitry.
POSSIBLE CAUSES
AMPLIFIER
INTERMITTENT CONDITION
TEST
ACTION
APPLICABILITY
1
NOTE: The fault condition must be present to continue diagnosis. Use the
DRBIII
t to perform the Amplifier pretest to verify the fault condition is
present before continuing diagnosis.
Turn the ignition on.
With the DRBIII
t, perform the Amplifier pretest.
Is the fault condition present?
All
Yes
→ Replace the Amplifier in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Refer to the wiring diagrams in the service information to help
isolate a possible intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
221
AUDIO
Symptom:
POWER AMP SHUTDOWN - BASE AUDIO SYSTEM
When Monitored and Set Condition:
POWER AMP SHUTDOWN - BASE AUDIO SYSTEM
When Monitored:
Ignition in RUN and IOD fuse installed.
Set Condition:
The radio has sensed a short on the output for more than 10 seconds.
POSSIBLE CAUSES
DETERMINE FAULT
FRONT SHORTED SPEAKER
REAR SHORTED SPEAKER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
SPEAKER (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF RADIO
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Turn the Radio on.
With the DRBIII
t, erase the audio DTC’s.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII
t, read the audio DTC’s.
Does the DRBIII
t display POWER AMP SHUTDOWN?
All
Yes
→ Go To 2
No
→ Refer to the wiring diagrams located in the service information to
help isolate a possible intermittent short.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
NOTE: Perform this procedure after disconnecting each front speaker
connector.
Disconnect each front speaker harness connector one at a time.
Turn the ignition on.
Turn the radio on.
With the DRBIII
t, erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII
t, read DTC’s.
Does the DRBIII
t display POWER AMP SHUTDOWN with all the speakers
disconnected?
All
Yes
→ Go To 3
No
→ Replace the Speaker that when disconnected the DTC did not
reset.
Perform BODY VERIFICATION TEST - VER 1.
222
AUDIO
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
NOTE: Perform this procedure after disconnecting each rear speaker
connector.
Disconnect each rear speaker harness connector one at a time.
Turn the ignition on.
Turn the radio on.
With the DRBIII
t, erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII
t, read DTC’s.
Does the DRBIII
t display POWER AMP SHUTDOWN with all the rear speakers
disconnected?
All
Yes
→ Go To 4
No
→ Replace the Speaker that when disconnected the DTC did not
reset.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect each front and rear speaker harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and each 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 each front and rear speaker harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and each 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 6
6
Turn the ignition off.
Disconnect each front and rear speaker 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 7
7
If there are no possible causes remaining, view repair.
All
Repair
Replace the Radio.
Perform BODY VERIFICATION TEST - VER 1.
223
AUDIO
POWER AMP SHUTDOWN - BASE AUDIO SYSTEM —
Continued
Symptom:
POWER AMP SHUTDOWN - PREMIUM AUDIO SYSTEM
When Monitored and Set Condition:
POWER AMP SHUTDOWN - PREMIUM AUDIO SYSTEM
When Monitored:
Ignition in RUN and IOD fuse installed.
Set Condition:
The radio has sensed a short on the output for more than 10 seconds.
POSSIBLE CAUSES
DETERMINE FAULT
SPEAKER SECTION OF POWER AMPLIFIER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
SPEAKER (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF RADIO
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Turn the Radio on.
With the DRBIII
t, erase the audio DTC’s.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII
t, read the audio DTC’s.
Does the DRBIII
t display POWER AMP SHUTDOWN?
All
Yes
→ Go To 2
No
→ Refer to the wiring diagrams located in the service information to
help isolate a possible intermittent short.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Power Amplifier harness connector.
Turn the ignition on.
Turn the radio on.
With the DRBIII
t, erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII
t, read DTC’s.
Does the DRBIII
t display POWER AMP SHUTDOWN?
All
Yes
→ Go To 3
No
→ Replace the Power Amplifier in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
224
AUDIO
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст