Chrysler Crossfire. Manual — part 860
9721 LEFT ROTATION RELAY CONTROL CIRCUIT OPEN/SHORT TO B(+) (CONTINUED)
•
When Monitored: With the ignition on, the Power Top Control Module (PTCM) continuously senses the
voltage on the Left Rotation Relay Control circuit.
•
Set Condition: When the PTCM senses B(+) on the Left Rotation Relay Control circuit.
Possible Causes
LEFT ROTATION RELAY
OPEN LEFT ROTATION RELAY CONTROL CIRCUIT
OPEN ROTATION RELAY GROUND CIRCUIT
LEFT ROTATION RELAY CONTROL CIRCUIT SHOR TO B(+)
POWER TOP CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
Read DTCs
Turn the ignition on.
With the DRBIII
T
, read Current DTCs.
Are both Right/Left Relay Control Circuit Open/Short to B(+)
DTCs set?
Yes
>> Go To 6
No
>> Go To 2
2.
Left Rotation Relay Control Circuit For Short To B(+)
Turn the ignition off.
Disconnect the PTCM C2 harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Left Rotation Relay Control circuit at the
PTCM C2 harness connector.
Is the voltage below 1.0 volts?
Yes
>> Go To 3
No
>> Repair the Left Rotation Relay Control circuit for a short to
B(+).
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
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CONVERTIBLE TOP
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9721 LEFT ROTATION RELAY CONTROL CIRCUIT OPEN/SHORT TO B(+) (CONTINUED)
3.
PTCM
Turn the ignition off.
Measure the resistance between the Rotation Relay Ground circuit
and the Left Rotation Relay Control circuit at the Power Top Control
Module C2 harness connector.
Is the resistance between 60.0 - 90.0 ohms?
Yes
>> Replace the Power Top Control Module.(Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
POWER TOP CONTROL MODULE - REMOVAL).
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
No
>> Go To 4
4.
Left Rotation Relay Control Circuit
With the ignition off.
Disconnect the Left Rotation Relay harness connector.
Note: Check connectors — Clean/repair as necessary.
Measure the resistance of the Left Rotation Relay Control circuit from
the Left Rotation Relay harness connector and the PTCM C2 harness
connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 5
No
>> Repair the Left Rotation Relay Control circuit for an open.
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
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9721 LEFT ROTATION RELAY CONTROL CIRCUIT OPEN/SHORT TO B(+) (CONTINUED)
5.
Open Rotation Relay Ground circuit
With the ignition off.
Measure the resistance of the Rotation Relay Ground circuit from the
Left Rotation Relay harness connector to the PTCM C2 harness con-
nector.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Left Rotation Relay.
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
No
>> Repair the Rotation Relay Ground circuit for an open.
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
6.
Rotation Relay Ground Circuit
Turn the ignition off.
Disconnect the Power Top Control Module C2 harness connector.
Measure the resistance between the Rotation Relay Ground circuit
and the Left Rotation Relay Control circuit at the Power Top Control
Module C2 harness connector.
Is the resistance between 60.0 - 90.0 ohms?
Yes
>> Replace the Power Top Control Module.(Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
POWER TOP CONTROL MODULE - REMOVAL).
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
No
>> Repair the Rotation Relay Ground circuit for an open.
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
ZH
CONVERTIBLE TOP
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9810 HYDRAULIC SOLENOID S1 SUPPLY VOLTAGE CIRCUIT SHORT TO GROUND
23 - 114
CONVERTIBLE TOP
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