required. Refer to the appropriate diagnostic infor-
mation.
TRANS TEMP INDICATOR
DESCRIPTION
A transmission over-temperature indicator is stan-
dard equipment on all instrument clusters (Fig. 31).
However, on vehicles not equipped with an optional
automatic transmission, this indicator is electroni-
cally disabled. The transmission over-temperature
indicator is located on the left side of the instrument
cluster, to the left of the fuel gauge. The transmission
over-temperature indicator consists of a stencil-like
cutout of the words “TRANS TEMP” in the opaque
layer of the instrument cluster overlay. The dark
outer layer of the overlay prevents the indicator from
being clearly visible when it is not illuminated. A red
Light Emitting Diode (LED) behind the cutout in the
opaque layer of the overlay causes the “TRANS
TEMP” text to appear in red through the translucent
outer layer of the overlay when the indicator is illu-
minated from behind by the LED, which is soldered
onto the instrument cluster electronic circuit board.
The transmission over-temperature indicator is ser-
viced as a unit with the instrument cluster.
OPERATION
The transmission over-temperature indicator gives
an indication to the vehicle operator when the trans-
mission fluid temperature is excessive, which may
lead to accelerated transmission component wear or
failure. This indicator is controlled by a transistor on
the instrument cluster circuit board based upon clus-
ter programming and electronic messages received by
the cluster from the Powertrain Control Module
(PCM)
over
the
Programmable
Communications
Interface (PCI) data bus. The transmission over-tem-
perature indicator Light Emitting Diode (LED) is
completely controlled by the instrument cluster logic
circuit, and that logic will only allow this indicator to
operate when the instrument cluster receives a bat-
tery current input on the fused ignition switch out-
put (run-start) circuit. Therefore, the LED will
always be off when the ignition switch is in any posi-
tion except On or Start. The LED only illuminates
when it is provided a path to ground by the instru-
ment cluster transistor. The instrument cluster will
turn on the transmission over-temperature indicator
for the following reasons:
•
Bulb Test - Each time the ignition switch is
turned to the On position the transmission over-tem-
perature indicator is illuminated for about two sec-
onds as a bulb test.
•
Trans Over-Temp Lamp-On Message - Each
time the cluster receives a trans over-temp lamp-on
message from the PCM indicating that the transmis-
sion fluid temperature is 135° C (275° F) or higher,
the indicator will be illuminated and a single chime
tone is sounded. The indicator remains illuminated
until the cluster receives a trans over-temp lamp-off
message from the PCM, or until the ignition switch
is turned to the Off position, whichever occurs first.
The chime tone feature will only repeat during the
same ignition cycle if the transmission over-tempera-
ture indicator is cycled off and then on again by the
appropriate trans over-temp messages from the PCM.
•
Actuator Test - Each time the cluster is put
through the actuator test, the transmission over-tem-
perature indicator will be turned on, then off again
during the bulb check portion of the test to confirm
the functionality of the LED and the cluster control
circuitry.
The PCM continually monitors the transmission
temperature sensor to determine the transmission
operating condition. The PCM then sends the proper
trans over-temp lamp-on or lamp-off messages to the
instrument cluster. If the instrument cluster turns on
the transmission over-temperature indicator due to a
high transmission oil temperature condition, it may
indicate that the transmission and/or the transmis-
sion cooling system are being overloaded or that they
require service. For further diagnosis of the trans-
mission over-temperature indicator or the instrument
cluster circuitry that controls the LED, (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUSTER - DIAGNO-
SIS AND TESTING). For proper diagnosis of the
transmission temperature sensor, the PCM, the PCI
data bus, or the electronic message inputs to the
instrument cluster that control the transmission
over-temperature indicator, a DRBIII
t
scan tool is
required. Refer to the appropriate diagnostic infor-
mation.
TURN SIGNAL INDICATOR
DESCRIPTION
Two turn signal indicators, one right and one left,
are standard equipment on all instrument clusters
(Fig. 32). The turn signal indicators are located near
Fig. 31 Transmission Overtemp Indicator
Fig. 32 Turn Signal Indicators
8J - 40
INSTRUMENT CLUSTER
DR
TOW/HAUL INDICATOR (Continued)
Summary of Contents for 1997 Ram 1500
Page 7: ...Fig 5 FASTENER IDENTIFICATION 6 INTRODUCTION DR FASTENER IDENTIFICATION Continued ...
Page 8: ...Fig 6 FASTENER STRENGTH DR INTRODUCTION 7 FASTENER IDENTIFICATION Continued ...
Page 10: ...Fig 7 METRIC CONVERSION CHART DR INTRODUCTION 9 METRIC SYSTEM Continued ...
Page 13: ......
Page 249: ......
Page 301: ......
Page 315: ......
Page 319: ...Fig 3 Cooling System Circulation 5 9L Diesel Engine 7 4 COOLING DR COOLING Continued ...
Page 401: ......
Page 407: ......
Page 469: ......
Page 485: ......
Page 585: ......
Page 619: ......
Page 697: ......
Page 727: ......
Page 743: ......
Page 747: ......
Page 748: ......
Page 749: ......
Page 750: ......
Page 751: ......
Page 752: ......
Page 753: ......
Page 754: ......
Page 755: ......
Page 756: ......
Page 757: ......
Page 758: ......
Page 759: ......
Page 760: ......
Page 761: ......
Page 762: ......
Page 763: ......
Page 764: ......
Page 765: ......
Page 766: ......
Page 767: ......
Page 768: ......
Page 769: ......
Page 770: ......
Page 771: ......
Page 772: ......
Page 773: ......
Page 774: ......
Page 775: ......
Page 776: ......
Page 777: ......
Page 778: ......
Page 779: ......
Page 780: ......
Page 781: ......
Page 782: ......
Page 783: ......
Page 784: ......
Page 785: ......
Page 786: ......
Page 787: ......
Page 788: ......
Page 789: ......
Page 790: ......
Page 791: ......
Page 792: ......
Page 793: ......
Page 794: ......
Page 795: ......
Page 796: ......
Page 797: ......
Page 799: ......
Page 800: ......
Page 801: ......
Page 802: ......
Page 803: ......
Page 804: ......
Page 805: ......
Page 806: ......
Page 807: ......
Page 808: ......
Page 809: ......
Page 810: ......
Page 811: ......
Page 812: ......
Page 813: ......
Page 814: ......
Page 815: ......
Page 816: ......
Page 817: ......
Page 819: ......
Page 820: ......
Page 821: ......
Page 822: ......
Page 823: ......
Page 825: ......
Page 826: ......
Page 827: ......
Page 829: ......
Page 830: ......
Page 831: ......
Page 833: ......
Page 834: ......
Page 835: ......
Page 836: ......
Page 837: ......
Page 838: ......
Page 839: ......
Page 840: ......
Page 841: ......
Page 842: ......
Page 843: ......
Page 844: ......
Page 845: ......
Page 846: ......
Page 847: ......
Page 848: ......
Page 849: ......
Page 850: ......
Page 851: ......
Page 852: ......
Page 853: ......
Page 854: ......
Page 855: ......
Page 856: ......
Page 857: ......
Page 858: ......
Page 859: ......
Page 860: ......
Page 861: ......
Page 862: ......
Page 863: ......
Page 864: ......
Page 865: ......
Page 866: ......
Page 867: ......
Page 868: ......
Page 869: ......
Page 870: ......
Page 871: ......
Page 872: ......
Page 873: ......
Page 874: ......
Page 875: ......
Page 876: ......
Page 877: ......
Page 878: ......
Page 879: ......
Page 880: ......
Page 881: ......
Page 882: ......
Page 883: ......
Page 884: ......
Page 885: ......
Page 886: ......
Page 887: ......
Page 888: ......
Page 889: ......
Page 890: ......
Page 891: ......
Page 892: ......
Page 893: ......
Page 894: ......
Page 895: ......
Page 896: ......
Page 897: ......
Page 899: ......
Page 900: ......
Page 901: ......
Page 902: ......
Page 903: ......
Page 904: ......
Page 905: ......
Page 906: ......
Page 907: ......
Page 908: ......
Page 909: ......
Page 910: ......
Page 911: ......
Page 912: ......
Page 913: ......
Page 915: ......
Page 916: ......
Page 917: ......
Page 918: ......
Page 919: ......
Page 920: ......
Page 921: ......
Page 923: ......
Page 924: ......
Page 925: ......
Page 927: ......
Page 928: ......
Page 929: ......
Page 931: ......
Page 932: ......
Page 933: ......
Page 934: ......
Page 935: ......
Page 937: ......
Page 938: ......
Page 939: ......
Page 940: ......
Page 941: ......
Page 942: ......
Page 943: ......
Page 944: ......
Page 945: ......
Page 946: ......
Page 947: ......
Page 948: ......
Page 949: ......
Page 951: ......
Page 952: ......
Page 953: ......
Page 955: ......
Page 956: ......
Page 957: ......
Page 958: ......
Page 959: ......
Page 960: ......
Page 961: ......
Page 962: ......
Page 963: ......
Page 965: ......
Page 966: ......
Page 967: ......
Page 969: ......
Page 970: ......
Page 971: ......
Page 973: ......
Page 974: ......
Page 975: ......
Page 976: ......
Page 977: ......
Page 978: ......
Page 979: ......
Page 981: ......
Page 983: ......
Page 984: ......
Page 985: ......
Page 987: ......
Page 988: ......
Page 989: ......
Page 990: ......
Page 991: ......
Page 993: ......
Page 994: ......
Page 995: ......
Page 996: ......
Page 997: ......
Page 998: ......
Page 999: ......
Page 1001: ......
Page 1002: ......
Page 1003: ......
Page 1004: ......
Page 1005: ......
Page 1007: ......
Page 1008: ......
Page 1009: ......
Page 1011: ......
Page 1012: ......
Page 1013: ......
Page 1014: ......
Page 1015: ......
Page 1017: ......
Page 1019: ......
Page 1020: ......
Page 1021: ......
Page 1022: ......
Page 1023: ......
Page 1024: ......
Page 1025: ......
Page 1027: ......
Page 1028: ......
Page 1029: ......
Page 1031: ......
Page 1032: ......
Page 1033: ......
Page 1035: ......
Page 1036: ......
Page 1037: ......
Page 1038: ......
Page 1039: ......
Page 1040: ......
Page 1041: ......
Page 1043: ......
Page 1044: ......
Page 1045: ......
Page 1046: ......
Page 1047: ......
Page 1048: ......
Page 1049: ......
Page 1525: ......
Page 1543: ......
Page 1560: ...Fig 23 FRAME DIMENSIONS DR FRAMES BUMPERS 13 17 FRAME Continued ...
Page 1561: ...Fig 24 140 5 IN WHEELBASE HEAVY DUTY 2 WHEEL DRIVE 13 18 FRAMES BUMPERS DR FRAME Continued ...
Page 1562: ...Fig 25 140 5 IN WHEELBASE HEAVY DUTY 4 WHEEL DRIVE DR FRAMES BUMPERS 13 19 FRAME Continued ...
Page 1563: ...Fig 26 160 5 IN WHEELBASE HEAVY DUTY 2 WHEEL DRIVE 13 20 FRAMES BUMPERS DR FRAME Continued ...
Page 1564: ...Fig 27 160 5 IN WHEELBASE HEAVY DUTY 4 WHEEL DRIVE DR FRAMES BUMPERS 13 21 FRAME Continued ...
Page 1655: ......
Page 1703: ......
Page 2279: ......
Page 2288: ...Fig 16 VEHICLE LEAD DIAGNOSIS AND CORRECTION CHART DR TIRES WHEELS 22 9 TIRES Continued ...
Page 2295: ......
Page 2398: ...Fig 10 DASH PANEL DR BODY STRUCTURE 23 103 SEALER LOCATIONS Continued ...
Page 2399: ...Fig 11 LOWER DASH PANEL 23 104 BODY STRUCTURE DR SEALER LOCATIONS Continued ...
Page 2400: ...Fig 12 ROOF PANEL DR BODY STRUCTURE 23 105 SEALER LOCATIONS Continued ...
Page 2401: ...Fig 13 CAB BACK PANEL 23 106 BODY STRUCTURE DR SEALER LOCATIONS Continued ...
Page 2402: ...Fig 14 LOWER DASH PANEL DR BODY STRUCTURE 23 107 SEALER LOCATIONS Continued ...
Page 2403: ...Fig 15 FLOOR PAN 23 108 BODY STRUCTURE DR SEALER LOCATIONS Continued ...
Page 2404: ...Fig 16 FRONT FLOOR PAN DR BODY STRUCTURE 23 109 SEALER LOCATIONS Continued ...
Page 2405: ...Fig 17 FLOOR PAN 23 110 BODY STRUCTURE DR SEALER LOCATIONS Continued ...
Page 2406: ...Fig 18 PICKUP BOX DR BODY STRUCTURE 23 111 SEALER LOCATIONS Continued ...
Page 2412: ...Fig 28 REAR DOOR INNER PANEL DR BODY STRUCTURE 23 117 STRUCTURAL ADHESIVE LOCATIONS Continued ...
Page 2413: ...Fig 29 SILL RAIL STD CAB 23 118 BODY STRUCTURE DR STRUCTURAL ADHESIVE LOCATIONS Continued ...
Page 2414: ...Fig 30 SILL RAIL QUAD CAB DR BODY STRUCTURE 23 119 STRUCTURAL ADHESIVE LOCATIONS Continued ...
Page 2419: ...Fig 31 FENDER BRACE 23 124 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2420: ...Fig 32 STEERING COLUMN SUPPORT DR BODY STRUCTURE 23 125 WELD LOCATIONS Continued ...
Page 2422: ...Fig 35 DASH PANEL Fig 36 LOWER PLENUM PANEL DR BODY STRUCTURE 23 127 WELD LOCATIONS Continued ...
Page 2423: ...Fig 37 FRONT FENDER Fig 38 DASH PANEL 23 128 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2424: ...Fig 39 FRONT FENDER Fig 40 DASH PANEL DR BODY STRUCTURE 23 129 WELD LOCATIONS Continued ...
Page 2425: ...Fig 41 HEADLAMP MOUNTING PANEL 23 130 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2427: ...Fig 43 AIR BAG MODULE BRACKET STANDARD CAB 23 132 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2429: ...Fig 45 REAR FLOOR CROSSMEMBER STANDARD CAB 23 134 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2432: ...Fig 49 FLOOR SILL STANDARD CAB DR BODY STRUCTURE 23 137 WELD LOCATIONS Continued ...
Page 2433: ...Fig 50 AIR BAG MODULE BRACKET QUAD CAB 23 138 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2435: ...Fig 52 REAR FLOOR CROSSMEMBER QUAD CAB 23 140 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2440: ...Fig 58 A PILLAR REINFORCEMENT STANDARD CAB DR BODY STRUCTURE 23 145 WELD LOCATIONS Continued ...
Page 2449: ...Fig 75 FLOOR SILL STANDARD CAB 23 154 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2450: ...Fig 76 BACK REINFORCEMENT STANDARD CAB DR BODY STRUCTURE 23 155 WELD LOCATIONS Continued ...
Page 2454: ...Fig 82 OUTER BODY SIDE APERTURE QUAD CAB DR BODY STRUCTURE 23 159 WELD LOCATIONS Continued ...
Page 2455: ...Fig 83 OUTER BODY SIDE APERTURE QUAD CAB 23 160 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2456: ...Fig 84 REAR FLOOR CROSSMEMBER QUAD CAB DR BODY STRUCTURE 23 161 WELD LOCATIONS Continued ...
Page 2457: ...Fig 85 CAB BACK REINFORCEMENT QUAD CAB 23 162 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2459: ...Fig 87 A PILLAR REINFORCEMENT QUAD CAB 23 164 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2460: ...Fig 88 B PILLAR REINFORCEMENT QUAD CAB DR BODY STRUCTURE 23 165 WELD LOCATIONS Continued ...
Page 2461: ...Fig 89 FRONT ROOF HEADER QUAD CAB 23 166 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2462: ...Fig 90 INNER BODY SIDE APERTURE QUAD CAB DR BODY STRUCTURE 23 167 WELD LOCATIONS Continued ...
Page 2465: ...Fig 93 TAPPING PLATES SHORT CARGO BOX ONLY 23 170 BODY STRUCTURE DR WELD LOCATIONS Continued ...
Page 2487: ......
Page 2516: ...Fig 3 Blower Motor Electrical Diagnosis DR DISTRIBUTION 24 29 BLOWER MOTOR Continued ...
Page 2517: ...Fig 4 Blower Motor Noise Vibration Diagnosis 24 30 DISTRIBUTION DR BLOWER MOTOR Continued ...
Page 2561: ......
Page 2587: ......
Page 2625: ......
Page 2627: ...Dealer Technical Operations 800 Chrysler Drive CIMS 486 02 76 Auburn Hills MI 48326 2757 ...