2012 Toyota Tundra 5.7L No Start
truck will only start after five or six tries. truck will start when blue wire from fuel pump module to fuel pump is energized. the fuel pump relay has been swapped. my question is this a failure pattern or a bad fuel pump driver module.
FIX posted 8/1/2022
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Message Closed w/FIX
Vehicle Data2012 Toyota Tundra
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2012 Toyota Tundra
VIN | 5TFUY5F18C |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | No Start |
Occurs | Intermittently |
Trouble Codes
P1603 | PCM Internal Dual-Port Communication Failure |
P1604 | PCM Internal Dual-Port Ram Read/Write Integrity Failure |
P1605 | Loss Of HVAC Serial Data |