Retrieving Diagnostic Trouble Codes

NOTE: Manufacturer recommends using Chrysler's Diagnostic Readout Box (DRB) scan tool with appropriate cartridge for system diagnosis. Other after-market scan tools may be used for system diagnosis. Following procedure is for DRB scan tool usage. Use manufacturer's instruction for operating scan tool.

NOTE: Ensure battery is fully charged before proceeding with test.

Ensure ignition is off. Connect DRB to data link connector located under driver's side of instrument panel. Using scan tool, display all Diagnostic Trouble Codes (DTC's). To identify DTC, see DIAGNOSTIC TROUBLE CODE IDENTIFICATION table.
If scan tool will not power up, check for loose cable connections or bad cable. If cable connections and cable are okay, check voltage at DLC terminal No. 16. Voltage should be at least 11 volts. If voltage is not as specified, check wiring circuit and necessary fuses. See appropriate wiring diagram in WIRING DIAGRAMS .
If scan tool displays an error message, RAM TEST FAILURE, CARTRIDGE ERROR, KEY PAD TEST FAILURE, or LOW OR HIGH BATTERY, this indicates a scan tool failure.
If DTCs are displayed, see DIAGNOSTIC TROUBLE CODE IDENTIFICATION table and perform appropriate test(s). If no DTCs are displayed, see TROUBLE SHOOTING in the appropriate AUTO TRANS OVERHAUL article. Refer to the following:
- 42RE or 44RE, see: AUTO TRANS OVERHAUL - 42RE, 42RH & 44RE
- 46RE or 47RE, see: AUTO TRANS OVERHAUL - 46 & 47 SERIES

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

Generic Scan Tool Code	Scan Tool Display	MIL Code	Test Number
P0783	3-4 SHIFT SOL. NO RPM DROP @ 3-4 SHIFT	45	TC-165
P1757	GOV PRES ABOVE 3 PSI IN GEAR WITH 0 MPH	45	TC-142A
P1756	GOV PRESS NOT EQUAL TO TARGET @ 15-20 PSI	45	TC-141
P1762	GOV PRESS SEN OFFSET VOLTS TOO LOW OR HIGH	45	TC-169
P1763	GOVERNOR PRESSURE SENSOR VOLTS TOO HI	45	TC-168
P1764	GOVERNOR PRESSURE SENSOR VOLTS TOO LOW	45	TC-167
P0748	GOVERNOR PRESSURE SOLENOID/TRANS RELAY CKTS	45	TC-171
N/A	O/D SWITCH PRESSED (LO) MORE THAN 5 MIN	45	TC-188
P0600	P/N SWITCH STUCK IN PARK OR IN GEAR	37	TC-114
P1765	TORQ CONV CLU. NO RPM DROP AT LOCKUP	37	TC-148
P1780	TORQUE CONVERTER CLUTCH SOLENOID/TRANS RELAY CKT	37	TC-12
P1765	TRANS 12 VOLT SUPPLY RELAY CNTRL CIRCUIT	45	TC-173
P0753	TRANS 3-4 SOLENOID/TRANS RELAY CKTS	45	TC-50
P0713	TRANS TEMP SENSOR VOLTAGE TOO HIGH	37	TC-75
P0712	TRANS TEMP SENSOR VOLTAGE TOO LOW	37	TC-74
P0711	TRANS TEMP SENSOR. NO TEMP RISE AFTER START	37	TC-164