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Test B: No Response/Acknowledgment Received From All Modules On Circuit No. 914 (+) Or Circuit No. 915 (-)

WARNING: This page is about a different car, the 1997 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure ignition switch is in OFF position. Inspect pins on scan tester for damage. If pins are okay, go to next step. If pins are damaged, repair scan tester. Repeat TEST A  .
  2. Inspect pins No. 2 and 10 on Data Link Connector (DLC) for damage. See Figure . If pins are okay, go to next step. If pins are damaged, repair as necessary. Repeat TEST A  .
  3. Disconnect 84-pin harness connector C217. Harness connector C217 is located behind driver's side of instrument panel. See Fig 1 .
  4. Using ohmmeter, check resistance between terminal No. 76 (Tan/Orange wire) on male side of harness connector C217 and terminal No. 2 (Tan/Orange wire) on DLC. See Figure and Fig 2 . Note resistance and go to next step.
  5. Using ohmmeter, check resistance between terminal No. 77 (Pink/Light Blue wire) on male side of harness connector C217 and terminal No. 10 (Pink/Light Blue wire) on DLC. See Figure and Fig 2 . Note resistance and go to next step.
  6. If resistance is 5 ohms or less on both circuits, go to next step. If resistance is more than 5 ohms on any circuit, repair open circuit on wiring harness part No. 14B242 between DLC and harness connector C217. See Figure . Repeat TEST A  .
    Fig 1: Locating Air Bag Diagnostic Monitor & Harness Connectors C212 & C217
    G97A28761Courtesy of FORD MOTOR CO.
    Fig 2: Identifying Harness Connector C212 & C217 Terminals
    G97B28762Courtesy of FORD MOTOR CO.
  7. Disconnect Gray 20-pin connector C256 from rear of Virtual Image Instrument Cluster (VIC). Reinstall harness connector C217.
  8. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  9. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  10. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 15).
  11. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  12. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  13. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 15).
  14. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace VIC. Repeat TEST A  .
  15. Turn ignition switch to OFF position. Reinstall connector C256 on rear of VIC. Disconnect Black 16-pin connector C224 from Front Control Unit (FCU). The FCU is located behind center of instrument panel on the radio. See Figure .
  16. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  17. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  18. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 23).
  19. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  20. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  21. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 23).
  22. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace FCU. Repeat TEST A  .
  23. Turn ignition switch to OFF position. Reinstall connector C224 on FCU. Disconnect Black 13-pin connector C275 from Electronic Automatic Temperature Control (EATC) module. The EATC module is located behind instrument panel on A/C evaporator core housing at passenger's side of vehicle. See Figure .
  24. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  25. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  26. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 31).
  27. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  28. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  29. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 31).
  30. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace EATC module. Repeat TEST A  .
  31. Disconnect 84-pin harness connector C217. Harness connector C217 is located behind driver's side of instrument panel. See Fig 1 .
  32. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  33. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  34. If voltage exists on both circuits, go to next step. If voltage does not exist on any circuit, repair short to battery voltage on circuit No. 914 (+) (Tan/Orange wire) and/or circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14B242 between VIC and harness connector C217. See Figure . Perform TEST A  .
  35. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  36. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  37. If voltage exists on both circuits, go to next step. If voltage does not exist on any circuit, repair short to ground on circuit No. 914 (+) (Tan/Orange wire) and/or circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14B242 between VIC and harness connector C217. See Figure . Perform TEST A  .
  38. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage exists, go to next step. If voltage does not exist, repair short between circuit No. 914 (+) (Tan/Orange wire) and circuit No.915 (-) (Pink/Light Blue wire) in wiring harness part No. 14B242 between VIC and harness connector C217. See Figure . Repeat TEST A  .
  39. Turn ignition switch to OFF position. Reinstall harness connector C217. Disconnect 16-pin connector C523 from Driver's Door Module (DDM). The DDM is located inside the driver's door. See Figure .
  40. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  41. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  42. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 47).
  43. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  44. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  45. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 47).
  46. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace DDM. Repeat TEST A  .
  47. Turn ignition switch to OFF position. Reinstall 16-pin connector C523 on DDM. Disconnect 26-pin connector C342 from Driver's Seat Module (DSM). The DSM is located below driver's side front seat. See Figure .
  48. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  49. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  50. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 55).
  51. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  52. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  53. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 55).
  54. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace DSM. Repeat TEST A  .
  55. Turn ignition switch to OFF position. Reinstall 26-pin connector C342 on DSM. Disconnect 60-pin connector C408 from Vehicle Dynamic Module (VDM). The VDM is located in driver's side of trunk, on panel below rear window. See Figure .
  56. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  57. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  58. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 63).
  59. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  60. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  61. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 63).
  62. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace VDM. Repeat TEST A  .
  63. Turn ignition switch to OFF position. Reinstall 60-pin connector C408 on VDM. Disconnect Black 22-pin connector C206 from Lighting Control Module (LCM). The LCM is located on instrument panel, behind headlight switch and uses a 12-pin connector, 21-pin connector and a 22-pin connector. See Figure .
  64. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  65. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  66. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 71).
  67. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  68. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  69. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 71).
  70. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace LCM. Repeat TEST A  .
  71. Turn ignition switch to OFF position. Reinstall 22-pin connector C206 on LCM. Disconnect 84-pin harness connector C212. Harness connector C212 is located behind driver's side of instrument panel. See Fig 1 .
  72. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  73. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  74. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 79).
  75. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  76. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  77. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 79).
  78. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, repair short to ground on circuit No. 914 (+) (Tan/Orange wire) and/or circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14401. See Figure . Perform TEST A  .
  79. Turn ignition switch to OFF position. Reinstall harness connector C212. Disconnect Gray 104-pin connector C1032 from Powertrain Control Module (PCM). The PCM is located in passenger's side of engine compartment, on the firewall. See Fig 3 .
    Fig 3: Locating PCM, EVAC & Fill Connector, Connector C176 & Harness Connectors C127, C139 & C150
    G97G28767Courtesy of FORD MOTOR CO.
  80. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  81. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  82. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 87).
  83. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  84. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  85. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 87).
  86. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, see TESTS W/CODES article in ENGINE PERFORMANCE section.
  87. Turn ignition switch to OFF position. Reinstall connector C1032 on PCM. Disconnect Black 16-pin harness connector C127. Harness connector C127 is located in engine compartment, near brake booster. See Fig 3 .
  88. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  89. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  90. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 95).
  91. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  92. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  93. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 95).
  94. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, repair short between circuit No. 914 (+) (Tan/Orange wire) and circuit No. 915 (-)(Pink/Light Blue wire) in wiring harness part No. 12A581. See Figure . Repeat TEST A  .
  95. Turn ignition switch to OFF position. Reinstall harness connector C127. Disconnect Black 40-pin harness connector C150. Harness connector C150 is located at driver's side rear corner of engine compartment. See Fig 3 .
  96. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  97. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  98. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 103).
  99. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  100. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  101. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 103).
  102. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, repair short between circuit No. 914 (+) (Tan/Orange wire) and circuit No. 915 (-)(Pink/Light Blue wire) in wiring harness part No. 14398 between harness connector C127 and C150. See Figure . Repeat TEST A  .
  103. Turn ignition switch to OFF position. Reinstall harness connector C150. Disconnect Black 28-pin connector C176 from Anti-Lock Brake System (ABS) control module. See Fig 3 . The ABS control module is located below battery tray at driver's side front corner of engine compartment.
  104. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  105. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  106. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 111).
  107. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  108. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  109. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 111).
  110. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace ABS control module. Repeat TEST A  .
  111. Turn ignition switch to OFF position. Reinstall connector C176 on ABS control module. Disconnect Gray 40-pin harness connector C139. Harness connector C139 is located at driver's side rear corner of engine compartment. See Fig 3 .
  112. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  113. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  114. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 120).
  115. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  116. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  117. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 120).
  118. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to step 120). If voltage exists, go to next step.
  119. Inspect EVAC and fill connector for Anti-Lock Brake System (ABS) for damage. EVAC and fill connector is a round Black 8-pin connector located in engine compartment on driver's side front fenderwell. See Fig 3 . Repair EVAC and fill connector if damaged. If EVAC and fill connector is okay, repair circuit No. 914 (+) (Tan/Orange wire) and circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14398 between harness connectors C127 and C150. Repeat TEST A  .
  120. If vehicle is equipped with a cellular phone, go to next step. If vehicle is not equipped with a cellular phone, repair circuit No. 914 (+) (Tan/Orange wire) and circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14A488. See Figure . Repeat TEST A  .
  121. Turn ignition switch to OFF position. Reinstall harness connector C139. Disconnect Black 14-pin harness connector C471. Harness connector C471 is located in the trunk. See Fig 4 .
    Fig 4: Locating Harness Connector C471, Cellular Phone Module (CPM) & Remote Emergency Satellite Cellular Unit (RESCU) Module
    G97F28766Courtesy of FORD MOTOR CO.
  122. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  123. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  124. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, repair short to battery voltage on circuit No. 914 (+) (Tan/Orange wire) and/or circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14A488. See Figure . Repeat TEST A  .
  125. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  126. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  127. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, repair short to ground on circuit No. 914 (+) (Tan/Orange wire) and/or circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14A488. See Figure . Repeat TEST A  .
  128. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage exists, go to next step. If voltage does not exist, repair short between circuit No. 914 (+) (Tan/Orange wire) and circuit No. 915 (-)(Pink/Light Blue wire) in wiring harness part No. 14A488. See Figure . Repeat TEST A  .
  129. Turn ignition switch to OFF position. Reinstall harness connector C471. Disconnect 16-pin connector C402 from Cellular Phone Module (CPM). The CPM is located in the trunk, on panel below rear window. See Fig 4 .
    NOTE: Cellular Phone Module (CPM) may also be referred to as mobile telephone phone transceiver.
  130. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  131. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  132. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 137).
  133. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  134. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  135. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, go to step 137).
  136. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure . If voltage does not exist, go to next step. If voltage exists, replace CPM. Repeat TEST A  .
  137. If vehicle is equipped with Remote Emergency Satellite Cellular Unit (RESCU) module, go to next step. If vehicle is not equipped with Remote Emergency Satellite Cellular Unit (RESCU) module, repair circuit No. 914 (+) (Tan/Orange wire) and circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14A005. See Figure . Repeat TEST A  .
  138. Turn ignition switch to OFF position. Disconnect 16-pin connector C449 from Remote Emergency Satellite Cellular Unit (RESCU) Module. The RESCU module is located at passenger's side rear corner of the trunk, behind trim panel. See Fig 4 .
  139. Reinstall connector C402 on Cellular Phone Module (CPM) if equipped. Turn ignition switch to ON position. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  140. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 16 (Light Green/Red wire) on DLC. See Figure . Note voltage and go to next step.
  141. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, repair short to battery voltage on circuit No. 914 (+) (Tan/Orange wire) and/or circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14A005. See Figure . Repeat TEST A  .
  142. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  143. Using voltmeter, check voltage between terminals No. 10 (Pink/Light Blue wire) and No. 4 (Black wire) on DLC. See Figure . Note voltage and go to next step.
  144. If voltage exists on any circuit, go to next step. If voltage does not exist on either circuit, repair short to ground on circuit No. 914 (+) (Tan/Orange wire) and/or circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14A005. See Figure . Repeat TEST A  .
  145. Using voltmeter, check voltage between terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire) on DLC. See Figure .
  146. If voltage exists, replace RESCU module. Repeat TEST A  . If voltage does not exist, repair short between circuit No. 914 (+) (Tan/Orange wire) and circuit No. 915 (-) (Pink/Light Blue wire) in wiring harness part No. 14A005. See Figure . Repeat TEST A  .
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