Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager. Manual — part 192

indicated. The first set of four flashes indicates the
number four. The second set of seven flashes indicates
seven.

ENGINE CONTROLLER

The Engine Controller is equipped with On-Board

Diagnostic features and monitors all engine control
circuits during a run/drive period. If a circuit or system
does not perform properly, the Engine Controller will
file in memory a predetermined Fault Code. This can

be used to help in diagnosing a problem. After 50 to 100

ignition switch ON/RUN cycles, the memory will be
erased if the fault does not reoccur.

The Engine Controller is located in the engine com-

partment outboard of the battery (Fig. 6).

16 Refer to Fig. 7 Alternator Fault Code chart for

relationships of alternator/charging system Fault Code
numbers.

DIAGNOSTIC TESTING USING FAULT CODES

For diagnostic testing when using the fault codes,

refer to Fig. 8 through 12.

Fig. 6 Engine Controller and Diagnostic Connector

Fig. 7 ALTERNATOR FAULT CODES

.

BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS

8A - 19

Fig. 8 CHECK FOR INADEQUATE/LOW CHARGING—USING ON BOARD DIAGNOSTIC FAULT CODES

8A - 20

BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS

.

Fig. 9 CHECK FOR OVERCHARGING—USING ON BOARD DIAGNOSTIC FAULT CODES

.

BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS

8A - 21

DRB II DIAGNOSTIC TESTER

TESTING FAULT CODES

A more accurate device to retrieve fault codes is

Diagnostic Tool (DRB II). This diagnostic tool, plugged
into the diagnostic connector (Fig. 6) located near the
battery, will display fault descriptions. The DRB II can
also test various circuits and component functions.
Refer to the instructions provided with the (DRB II)
tool being used. Descriptions of Fault Codes for other
vehicle systems can be found in the General Diagnosis
section of Group 14, Fuel System.

Fig. 10 Alternator Wiring Connections

Fig. 11 Engine Controller Connector

Fig. 12 Electrical Resistance Test

8A - 22

BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS

.