Chrysler PT Cruiser 2001 Service Manual Supplement page 2859

P1782 - 2-4 PRESSURE SWITCH SENSE CIRCUIT —
TEST
7 Turn ignition off to the lock position.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B(+) and Transmission Control Relay
Output circuits in the Transmission Control Relay connector (In PDC).
Ignition on, engine not running.
Measure the voltage of the 2-4 Pressure Switch Sense circuit in the TCM connector.
Is the voltage above 3.0 volts?
Yes → Repair 2-4 Pressure Switch Sense circuit short to voltage.
No
8 Turn ignition off to the lock position.
Disconnect the Transmission Solenoid/Pressure Switch connector.
Remove the Transmission Control Relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B(+) and Transmission Control Relay
Output circuits in the Transmission Control Relay connector (In PDC).
Connect the ground clip of a test light to a known good ground.
Probe the Transmission Relay Output circuit in the Solenoid/PS connector with the
test light
Note: The light must illuminate brightly, if it does not light, or lights dimly,
the circuit must be repaired. If there is any doubt, compare the brightness
when testing the circuit, to the brightness when connected directly to the
battery.
Does the light illuminate brightly?
Yes → Go To 9
No
9 If there are no possible causes remaining, replace the Solenoid/Pressure switch
assembly.
View repair options.
Repair
ACTION
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
→ Go To 8
→ Repair cause of unlit or dim test light. (Open circuit or high
resistance in Trans Relay Output circuit)
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Replace Transmission Solenoid/Pressure switch assembly as re-
quired.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
111
TRANSMISSION
Continued
APPLICABILITY
All
All
All