Check the Power and Ground Supplies to the Right-Hand Screen
: CHECK THE POWER AND GROUND SUPPLIES TO THE RIGHT-HAND SCREEN
G240121t62 : CHECK FOR BATTERY VOLTAGE AT THE SCREEN CONNECTOR, VR01
1. Disconnect the right-hand screen electrical connector, VR01.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between VR01, pin 18 (OY) and GROUND.
- Is the voltage greater than 10 volts?
-> Yes
-> No
G240121t63 : CHECK THE CIRCUIT BETWEEN VR01 AND TL87 FOR CONTINUITY
1. Disconnect the audio video selector module electrical connector, TL87.
2. Measure the resistance between VR01, pin 18 (OY) and TL87, pin 18 (OY).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t64 : CHECK THE CIRCUIT BETWEEN VR01 AND VR02 FOR CONTINUITY
1. Disconnect intermediate connector, VR02.
2. Measure the resistance between VR01, pin 18 (OY) and VR02, pin 18 (OY).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t65 : CHECK THE CIRCUIT BETWEEN VR02 AND TL91 FOR CONTINUITY
1. Disconnect intermediate connector, TL91.
2. Measure the resistance between VR02, pin 18 (OY) and TL91, pin 18 (OY).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t66 : CHECK THE CIRCUIT BETWEEN TL91 AND TL87 FOR CONTINUITY
1. Measure the resistance between TL91, pin 18 (OY) and TL87, pin 18 (OY).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t67 : CHECK FOR VOLTAGE AT VR01, PIN 08
1. Reconnect the audio video selector module electrical connector, TL87.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between VR01, pin 08 (N) and GROUND.
- Is the voltage -14 to -18 volts?
-> Yes
-> No
G240121t68 : CHECK THE CIRCUIT BETWEEN VR01 AND TL87 FOR CONTINUITY
1. Turn the ignition switch to the OFF position.
2. Disconnect audio video selector module electrical connector, TL87.
3. Measure the resistance between VR01, pin 08 (N) and TL87, pin 08 (N).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t69 : CHECK THE CIRCUIT BETWEEN VR01 AND VR02 FOR CONTINUITY
1. Disconnect intermediate connector, VR02.
2. Measure the resistance between VR01, pin 08 (N) and VR02, pin 08 (N).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t70 : CHECK THE CIRCUIT BETWEEN VR02 AND TL91 FOR CONTINUITY
1. Disconnect intermediate connector, TL91.
2. Measure the resistance between VR02, pin 08 (N) and TL91, pin 08 (N).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t71 : CHECK THE CIRCUIT BETWEEN TL91 AND TL87 FOR CONTINUITY
1. Measure the resistance between TL91, pin 08 (N) and TL87, pin 08 (N).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t72 : CHECK FOR VOLTAGE AT VR01, PIN 06
1. Reconnect audio video selector module electrical connector, TL87.
2. Make sure the ignition switch is in the ON position.
3. Measure the voltage between VR01, pin 06 (U) and GROUND.
- Is the voltage 6 volts?
-> Yes
-> No
G240121t73 : CHECK THE CIRCUIT BETWEEN VR01 AND TL87 FOR CONTINUITY
1. Turn the ignition switch to the OFF position.
2. Disconnect audio video selector module electrical connector, TL87.
3. Measure the resistance between VR01, pin 06 (U) and TL87, pin 06 (U).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t74 : CHECK THE CIRCUIT BETWEEN VR01 AND VR02 FOR CONTINUITY
1. Disconnect intermediate connector, VR02.
2. Measure the resistance between VR01, pin 06 (U) and VR02, pin 06 (U).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t75 : CHECK THE CIRCUIT BETWEEN VR02 AND TL91 FOR CONTINUITY
1. Disconnect intermediate connector, TL91.
2. Measure the resistance between VR02, pin 06 (U) and TL91, pin 06 (U).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t76 : CHECK THE CIRCUIT BETWEEN TL91 AND TL87 FOR CONTINUITY
1. Measure the resistance between TL91, pin 06 (U) and TL87, pin 06 (U).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t77 : CHECK FOR VOLTAGE AT VR01, PIN 04
1. Reconnect the audio video selector module electrical connector, TL87.
2. Make sure the ignition switch is in the ON position.
3. Measure the voltage between VR01, pin 04 (BK) and GROUND.
- Is the voltage battery voltage?
-> Yes
-> No
G240121t78 : CHECK THE CIRCUIT BETWEEN VR01 AND TL87 FOR CONTINUITY
1. Make sure the ignition switch is in the OFF position.
2. Disconnect audio video selector module electrical connector, TL87.
3. Measure the resistance between VR01, pin 04 (BK) and TL87, pin 04 (BK).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t79 : CHECK THE CIRCUIT BETWEEN VR01 AND VR02 FOR CONTINUITY
1. Disconnect intermediate connector, VR02.
2. Measure the resistance between VR01, pin 04 (BK) and VR02, pin 04 (BK).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t80 : CHECK THE CIRCUIT BETWEEN VR02 AND TL91 FOR CONTINUITY
1. Disconnect intermediate connector, TL91.
2. Measure the resistance between VR02, pin 04 (BK) and TL91, pin 04 (BK).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t81 : CHECK THE CIRCUIT BETWEEN TL91 AND TL87 FOR CONTINUITY
1. Measure the resistance between TL91, pin 04 (BK) and TL87, pin 04 (BK).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t82 : CHECK FOR VOLTAGE AT VR01, PIN 02
1. Reconnect the audio video selector module electrical connector, TL87.
2. Measure the voltage between VR01, pin 02 (YB) and GROUND.
- Is the voltage battery voltage?
-> Yes
-> No
G240121t83 : CHECK THE CIRCUIT BETWEEN VR01 AND TL87 FOR CONTINUITY
1. Disconnect audio video selector module electrical connector, TL87.
2. Measure the resistance between VR01, pin 02 (YB) and TL87, pin 02 (YB).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t84 : CHECK THE CIRCUIT BETWEEN VR01 AND VR02 FOR CONTINUITY
1. Disconnect intermediate connector, VR02.
2. Measure the resistance between VR01, pin 02 (YB) and VR02, pin 02 (YB).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t85 : CHECK THE CIRCUIT BETWEEN VR02 AND TL91 FOR CONTINUITY
1. Disconnect intermediate connector, TL91.
2. Measure the resistance between VR02, pin 02 (YB) and TL91, pin 02 (YB).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t86 : CHECK THE CIRCUIT BETWEEN TL91 AND TL87 FOR CONTINUITY
1. Measure the resistance between TL91, pin 02 (YB) and TL87, pin 02 (YB).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t87 : CHECK FOR GROUND AT VR01, PIN 01
1. Reconnect the audio video selector module electrical connector, TL87.
2. Measure the resistance between VR01, pin 01 (YG) and GROUND.
- Is the resistance greater than 5 ohms?
-> Yes
-> No
G240121t88 : CHECK THE CIRCUIT BETWEEN VR01 AND TL87 FOR CONTINUITY
1. Disconnect the audio video selector module electrical connector, TL87.
2. Measure the resistance between VR01, pin 01 (YG) and TL87, pin 01 (YG).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t89 : CHECK THE CIRCUIT BETWEEN VR01 AND VR02 FOR CONTINUITY
1. Disconnect intermediate connector, VR02.
2. Measure the resistance between VR01, pin 01 (YG) and VR02, pin 01 (YG).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t90 : CHECK THE CIRCUIT BETWEEN VR02 AND TL91 FOR CONTINUITY
1. Disconnect intermediate connector, TL91.
2. Measure the resistance between VR02, pin 01 (YG) and TL91, pin 01 (YG).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t91 : CHECK THE CIRCUIT BETWEEN TL91 AND TL87 FOR CONTINUITY
1. Measure the resistance between TL91, pin 01 (YG) and TL87, pin 01 (YG).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
INSTALL a new audio video selector module, TEST the system for normal operation.
G240121t92 : CHECK FOR IGNITION VOLTAGE AT VR01, PIN 16
1. Turn the ignition switch to the ON position.
2. Measure the voltage between VR01, pin 16 (RG) and GROUND.
- Is the voltage 5 volts?
-> Yes
INSTALL a new right-hand screen, TEST the system for normal operation.
-> No
G240121t93 : CHECK FOR SHORT TO GROUND AT VR01, PIN 16
1. Reconnect the intermediate connectors.
2. Measure the resistance between VR01, pin 16 (RG) and GROUND.
- Is the resistance less than 10,000 ohms?
-> Yes
-> No
G240121t97 : CHECK THE CIRCUIT BETWEEN VR01 AND TL87 FOR CONTINUITY
1. Measure the resistance between VR01, pin 16 (RG) and TL87, pin 16 (RG).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
G240121t94 : CHECK FOR SHORT TO GROUND AT VR02, PIN 16
1. Disconnect intermediate connector, VR02.
2. Measure the resistance between VR02, pin 16 (RG) and GROUND.
- Is the resistance less than 10,000 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t98 : CHECK THE CIRCUIT BETWEEN VR01 AND VR02 FOR CONTINUITY
1. Measure the resistance between VR01, pin 16 (RG) and VR02, pin 16 (RG).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR01 and VR02. TEST the system for normal operation.
-> No
G240121t95 : CHECK FOR SHORT TO GROUND AT TL91, PIN 16
1. Disconnect intermediate connector, TL91.
2. Measure the resistance between TL91, pin 16 (RG) and GROUND.
- Is the resistance less than 10,000 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t99 : CHECK THE CIRCUIT BETWEEN VR02 AND TL91 FOR CONTINUITY
1. Measure the resistance between VR02, pin 16 (RG) and TL91, pin 16 (RG).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between VR02 and TL91. TEST the system for normal operation.
-> No
G240121t96 : CHECK FOR SHORT TO GROUND AT TL87, PIN 16
1. Measure the resistance between TL87, pin 16 (RG) and GROUND.
- Is the resistance less than 10,000 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
G240121t100 : CHECK THE CIRCUIT BETWEEN TL91 AND TL87 FOR CONTINUITY
1. Measure the resistance between TL91, pin 16 (RG) and TL87, pin 16 (RG).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between TL91 and TL87. TEST the system for normal operation.
-> No
G240121t101 : CHECK FOR VOLTAGE AT AUDIO VIDEO SELECTOR MODULE CONNECTOR TL86
1. Disconnect the audio video selector module electrical connector, TL86.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between TL86, pin 05 (RU) and GROUND.
- Is the voltage 5 volts?
-> Yes
INSTALL a new audio video selector module, TEST the system for normal operation.
-> No
G240121t102 : CHECK FOR SHORT TO GROUND AT CONTROL PANEL CONNECTOR RC03
1. Disconnect the control panel electrical connector, RC03.
2. Measure the resistance between RC03, pin 05 (RU) and GROUND.
- Is the resistance less than 10,000 ohms?
-> Yes
-> No
G240121t103 : CHECK THE CIRCUIT BETWEEN RC03 AND TL86 FOR CONTINUITY
1. Measure the resistance between RC03, pin 05 (RU) and TL86, pin 05 (RU).
- Is the resistance greater than 5 ohms?
-> Yes
-> No
INSTALL a new control panel, TEST the system for normal operation.
G240121t104 : CHECK FOR SHORT TO GROUND AT INTERMEDIATE CONNECTOR RC04
1. Disconnect intermediate connector, RC04.
2. Measure the resistance between RC04, pin 05 (RU) working towards the control panel, and GROUND.
- Is the resistance less than 10,000 ohms?
-> Yes
INSTALL a new harness between RC03 and RC04. TEST the system for normal operation.
G240121t105 : CHECK THE CIRCUIT BETWEEN RC03 AND RC04 FOR CONTINUITY
1. Measure the resistance between RC03, pin 05 (RU) and RC04, pin 05 (RU).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between RC03 and RC04. TEST the system for normal operation.
-> No
G240121t106 : CHECK FOR SHORT TO GROUND AT AUDIO VIDEO SELECTOR MODULE CONNECTOR TL86
1. Measure the resistance between TL86, pin 05 (RU) and GROUND.
- Is the resistance less than 10,000 ohms?
-> Yes
INSTALL a new harness between RC04 and TL86. TEST the system for normal operation.
-> No
G240121t107 : CHECK THE CIRCUIT BETWEEN RC04 AND TL86 FOR CONTINUITY
1. Measure the resistance between RC04, pin 05 (RU) and TL86, pin 05 (RU).
- Is the resistance greater than 5 ohms?
-> Yes
INSTALL a new harness between RC04 and TL86. TEST the system for normal operation.
-> No
INSTALL a new control panel, TEST the system for normal operation.