A/T - DTC P1714 Stored in Memory: Overview
NUMBER: 18-11-00GROUP: Vehicle Performance
DATE: July 28, 2000
SUBJECT:
Low Voltage Clutch Protection - Added DTC - P1714 Low Battery Voltage
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Transmission Control
Module (TCM) with new software.
MODELS:
1999 (FJ) Avenger/Sebring
1999 (GS) Chrysler Voyager (European Market)
1999 (JA) Cirrus/Stratus/Breeze
1999 (JX) Sebring Convertible
1999 (LH) Concorde/Intrepid/LHS/300M
1999 (NS) Town & Country/Caravan/Voyager
1999 (PR) Prowler
NOTE:
THIS INFORMATION APPLIES TO VEHICLES EQUIPPED WITH A 41TE/AE OR 42LE AUTOMATIC TRANSAXLE BUILT PRIOR TO:
DISCUSSION:
Operation of vehicles with low battery voltage may result in the transaxle overdrive clutch becoming distressed. Conditions such as an inoperative charging system or excess voltage drop to the TCM circuits may be causes for low voltage. The software released by this Technical Service Bulletin provides protection to the overdrive clutch and adds a new DTC - P1714 LOW BATTERY VOLTAGE for these models. Diagnostic procedures relating to P1714 are included for your reference.
NOTE:
WHENEVER A TRANSMISSION CONTROL MODULE (TCM) IS REPLACED, THE SOFTWARE OF THE REPLACEMENT CONTROLLER MUST BE VERIFIED FOR THE LATEST REVISION LEVEL. USE THE FLASH PROCEDURE TO UPDATE REPLACED CONTROLLERS AS NECESSARY.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
NOTE:
THE MDS2 AND DRB III(R) ARE REQUIRED TO PERFORM PART OF THIS REPAIR. THE MDS2 SYSTEM MUST BE OPERATING AT CIS CD2063 OR HIGHER.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No: 08-19-51-90 Module Reprogram 0.5 Hrs.
FAILURE CODE: FM - Flash Module
Symptom:
P1714-LOW BATTERY VOLTAGE
When Monitored and Set Condition:
P1714-LOW BATTERY VOLTAGE
When Monitored: With the engine running and the TCM has closed the Transmission Control Relay.
Set Condition:
If battery voltage at TCM Transmission Control Relay Output Sense circuit is less than 10.0 volts for 15 seconds. *P-1714 generally indicates a gradually falling battery voltage or resistive connections to the TCM.
Possible Causes
RELATED CHARGING SYSTEM DTCS
INTERMITTENT WIRING AND CONNECTORS
FUSED B+ CIRCUIT OPEN OR HIGH RESISTANCE
GROUND CIRCUIT OPEN OR HIGH RESISTANCE
TRANS CONTROL RELAY OUTPUT TO TCM OPEN OR HIGH RESISTANCE
TRANSMISSION CONTROL RELAY OPEN OR HIGH RESISTANCE
TCM - LOW BATTERY VOLTAGE