Chrysler PT Cruiser. Manual — part 87
POSSIBLE CAUSES
HANDS FREE MODULE
HANDS FREE MODULE
REAR VIEW MIRROR
SENSOR GROUND CIRCUIT OPEN
VR/PHONE SWITCH SIGNAL CIRCUIT OPEN
VR/PHONE SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
VR/PHONE SWITCH SIGNAL CIRCUIT SHORTED TO SENSOR GROUND
VR/PHONE SWITCH SIGNAL CIRCUIT SHORTED TO VOLTAGE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Rear View Mirror harness connector.
Turn the ignition on.
Measure the voltage of the VR/Phone Switch Signal circuit in the Rear View Mirror
harness connector.
Chose which of the following describes the voltage measured.
All
Voltage is above 5.3 volts
Voltage is between 4.7 and 5.3 volts
Voltage is below 4.7 volt
2
Turn the ignition off.
Disconnect the Rear View Mirror harness connector.
Disconnect the Hands Free Module harness connectors.
Turn the ignition on.
Measure the voltage of the VR/Phone Switch Signal circuit.
Is the voltage below 1.0 volt?
All
Yes
→ Inspect the wiring and connectors for damage or shorted circuits.
Repair as necessary. If ok, replace and program the Hands Free
Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the VR/Phone Switch Signal circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
335
TELECOMMUNICATION
PHONE SWITCH STUCK —
Continued
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Rear View Mirror harness connector.
Turn the ignition on.
With the DRBIII
t, read the VR/Phone Switch Signal voltage.
Connect one end of a jumper wire to the VR/Phone Switch Signal circuit at the Rear
View Mirror harness connector.
While observing the DRBIII
t, momentarily connect and disconnect the other end of
the jumper wire to Sensor Ground at the Rear View Mirror harness connector.
NOTE: The DRBIII
t sensor voltage should switch from above 4.7 volts when
jumper is not connected to below 0.6 volts when jumper is connected.
Does sensor voltage switch from above 4.7 volts to below 0.6 volt as described?
All
Yes
→ Replace the Rear View Mirror in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Inspect the wiring and connectors for damage or shorted circuits.
Repair as necessary. If ok, replace and program the Hands Free
Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect the Rear View Mirror harness connector.
Disconnect the Hands Free Module harness connectors.
Measure the resistance of the VR/Phone Switch Signal circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 5
No
→ Repair the VR/Phone Switch Signal circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Disconnect the Rear View Mirror harness connector.
Disconnect the Hands Free Module harness connectors.
Measure the resistance of the Sensor Ground circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 6
No
→ Repair the Sensor Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Disconnect the Rear View Mirror harness connector.
Disconnect the Hands Free Module harness connector.
Measure the resistance between ground and the VR/Phone Switch Signal circuit.
Is the resistance above 1000.0 ohms?
All
Yes
→ Go To 7
No
→ Repair the VR/Phone Switch Signal circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
336
TELECOMMUNICATION
PHONE SWITCH STUCK —
Continued
TEST
ACTION
APPLICABILITY
7
Turn the ignition off.
Disconnect the Rear View Mirror harness connector.
Disconnect the Hands Free Module harness connector.
Measure the resistance between Sensor Ground and the VR/Phone Switch Signal
circuit at the Rear View Mirror harness connector.
Is the resistance above 1000.0 ohms?
All
Yes
→ Inspect the wiring and connectors for damage or shorted circuits.
Repair as necessary. If ok, replace and program the Hands Free
Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the VR/Phone Switch Signal circuit for a short to the
Sensor Ground circuit.
Perform BODY VERIFICATION TEST - VER 1.
337
TELECOMMUNICATION
PHONE SWITCH STUCK —
Continued
Symptom:
PRNDL MESSAGE NOT RECEIVED
When Monitored and Set Condition:
PRNDL MESSAGE NOT RECEIVED
When Monitored:
With the ignition on.
Set Condition:
The Hands Free Module does not receive a gear selector message from the
PCM/TCM.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE PCM (TCM)
MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, attempt to communicate with the PCM (TCM).
Was the DRBIII
t able to I/D or communicate with the PCM?
All
Yes
→ Go To 2
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
2
With the DRBIII
t, erase DTC’s.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRBIII
t, read DTC’s.
Did this DTC reset?
All
Yes
→ Replace the Hands Free Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
338
TELECOMMUNICATION
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст