Dodge Ram. Manual — part 62
Symptom:
RIGHT I/P SPEAKER AND BOTH REAR CHANNELS SHORT
ACROSS
When Monitored and Set Condition:
RIGHT I/P SPEAKER AND BOTH REAR CHANNELS SHORT ACROSS
When Monitored:
When the DRBIII
t performs the Speaker Output test.
Set Condition:
When the Right I/P Speaker and both Rear Speaker circuits are simulta-
neously shorted.
POSSIBLE CAUSES
RIGHT I/P SPEAKER AND BOTH REAR CHANNELS SHORTED ACROSS
RIGHT I/P SPEAKER AND BOTH REAR SPEAKER CIRCUITS SHORTED
AMPLIFIER
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.
NOTE: Amplifier speaker circuits are all shorted simultaneously.
Turn the ignition off.
Access and disconnect the Right I/P Speaker and both Rear Speaker harness
connectors.
Turn the ignition on.
With the DRBIII
t, perform the Amplifier pretest.
Is the fault condition still present?
All
Yes
→ Go To 2
No
→ Replace the Right I/P Speaker and both Rear Speakers in accor-
dance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Access and disconnect the Right I/P Speaker harness connector.
Access and disconnect both Rear Speaker harness connectors.
Access and disconnect the Amplifier C2 harness connector.
Measure the resistance of the Right I/P Speaker (+) and (-) circuits.
Measure the resistance of both Rear Speaker (+) and (-) circuits.
Is the resistance below 5.0 ohms on each measurement?
All
Yes
→ Repair all Speaker (+) and (-) circuits for a short together.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Amplifier in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
245
AUDIO
Symptom:
RIGHT REAR CHANNEL SHORT ACROSS
When Monitored and Set Condition:
RIGHT REAR CHANNEL SHORT ACROSS
When Monitored:
When the DRBIII
t performs the Speaker Output test.
Set Condition:
When the Right Rear Speaker circuit is shorted.
POSSIBLE CAUSES
RIGHT REAR CHANNEL SHORT ACROSS
RIGHT REAR SPEAKER CIRCUITS SHORTED
AMPLIFIER
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 off.
Access and disconnect the Right Rear Speaker harness connector.
Turn the ignition on.
With the DRBIII
t, perform the Amplifier pretest.
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 Right Rear Speaker harness connector.
Access and disconnect the Amplifier C2 harness connector.
Measure the resistance of the Right Rear Speaker (+) and (-) circuits.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Right Rear Speaker (+) and (-) circuits for a short
together.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Amplifier in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
246
AUDIO
Symptom:
RIGHT REAR INPUT NO ACTIVITY
When Monitored and Set Condition:
RIGHT REAR INPUT NO ACTIVITY
When Monitored:
When the DRBIII
t performs the amplifier Input Test.
Set Condition:
The Amplifier detects no activity on the input circuit.
POSSIBLE CAUSES
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
OPEN SPEAKER CIRCUITS
AMPLIFIER
RADIO
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 off.
Disconnect the Amplifier C1 harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and the right rear 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 2
2
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and the right rear 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 3
247
AUDIO
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Amplifier C1 harness connector.
Disconnect the Radio harness connector.
Measure the resistance of each right rear speaker (+) and (-) circuit between the
Radio and the Amplifier.
Is the resistance below 5.0 ohms for each circuit?
All
Yes
→ Go To 4
No
→ Repair the speaker circuits for an open.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Reconnect the Radio harness connector.
Disconnect the Amplifier C1 harness connector.
Turn the ignition on and the Radio on to a known good radio station or have a tape
or CD playing.
Turn the radio volume control up at least 25 positions.
With the voltmeter in the AC voltage scale, measure the voltage of each right rear
speaker circuit at the Amplifier C1 connector.
NOTE: Perform this test on each right rear speaker circuit.
Is the voltage at least 120mV AC (0.12 VAC) on each speaker circuit?
All
Yes
→ Replace the Amplifier in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Radio.
Perform BODY VERIFICATION TEST - VER 1.
248
AUDIO
RIGHT REAR INPUT NO ACTIVITY —
Continued
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст