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Test B - No Communication With Rap Module

  1. Turn ignition switch to LOCK position. Inspect fuse No. 20 (7.5-amp) in instrument panel fuse box. Inspect fuse No. 9 (20-amp) in power distribution box. If both fuses are okay, go to next step. If fuse No. 9 is blown, repair short to ground in White/Light Blue wire between power distribution box and Remote Anti-Theft Personality (RAP) module. If fuse No. 20 is blown, repair short to ground in Black/Pink wire between instrument panel fuse box and RAP module.
  2. Turn ignition switch to LOCK position. Disconnect RAP module 22-pin harness connector T-409. Measure voltage at terminal No. 12 (White/Light Blue wire) at RAP module harness connector T-409. See Figure and Figure . If battery voltage exists, go to next step. If battery voltage does not exist, repair open in White/Light Blue wire power distribution box and RAP module.
  3. Disconnect RAP module 26-pin harness connector T-410. Turn ignition switch to RUN position. Measure voltage at terminal No. 25 (Black/Pink wire) at RAP module harness connector T-410. If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Black/Pink wire instrument panel fuse box and RAP module.
  4. Turn ignition switch to LOCK position. Measure resistance between ground and terminal No. 14 (Black wire) at RAP module harness connector T-409. If resistance is 5 ohms or less, repair module communication concern. See MODULE COMMUNICATIONS NETWORK article. If resistance is greater than 5 ohms, repair open in Black wire between RAP module and ground.
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