2002 DODGE RAM battery

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Page 364 of 2255

DODGE RAM 2002  Service Repair Manual CHIME WARNING SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
NO CHIMES AND OTHER
CTM FEATURES ERRATIC
OR DISABLED1. CTM ground circuit(s)
open.1. Check for continuity between the ground circuit

Page 368 of 2255

DODGE RAM 2002  Service Repair Manual CTM through the use of a combination of soldered
splices, splice block connectors, and many different
types of wire harness terminal connectors and insu-
lators. Refer to the appropriate wiring inform

Page 369 of 2255

DODGE RAM 2002  Service Repair Manual HARD WIRED OUTPUTS
The hard wired outputs of the CTM include the fol-
lowing:
²CCD bus± - high-line/premium version only
²CCD bus+ - high-line/premium version only
²Courtesy lamp switch output - h

Page 370 of 2255

DODGE RAM 2002  Service Repair Manual (4) Turn the ignition switch to the On position. For
a base version CTM, check for battery voltage at the
fused ignition switch output (st-run) fuse (Fuse 11 -
10 ampere) in the JB. For a high-line/pr

Page 371 of 2255

DODGE RAM 2002  Service Repair Manual (5) Disconnect the instrument panel wire harness
connector(s) (one connector for the base version CTM,
two connectors for the high-line/premium version)
from the CTM connector receptacle(s).
(6) Remov

Page 376 of 2255

DODGE RAM 2002  Service Repair Manual DIAGNOSIS AND TESTING - CCD DATA BUS
CCD BUS FAILURE
The CCD data bus can be monitored using the
DRBIIItscan tool. However, it is possible for the
data bus to pass all tests since the voltage parame-

Page 377 of 2255

DODGE RAM 2002  Service Repair Manual (2) Push the harness connector locks to release the
locks, (Fig. 11) then remove the connectors from the
CAB.
(3) Disconnect the pump motor connector (Fig. 12)
.
(4) Remove screws attaching CAB to the

Page 378 of 2255

DODGE RAM 2002  Service Repair Manual ENGINE CONTROL MODULE
DESCRIPTION - ECM
The ECM is bolted to the left side of the engine
behind the fuel filter (Fig. 14). It is a separate com-
ponent and can be serviced. The FPCM is internal to
the