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Home >> Jeep >> 2015 >> Grand Cherokee SRT >> Repair and Diagnosis >> Engine Performance >> System >> 6.4L - DTCS P000B To P0300 >> DTC Troubleshooting >> P0121-Throttle Position Sensor 1 Performance >> Set Condition

Set Condition

When fault P2135 is active, the Powertrain Control Module (PCM) looks at the difference between calculated MAP based on TPS 1 input and sensed MAP. The same is done for TPS 2. If the PCM determines that the TPS 1 error is larger than the TPS 2 error, this fault is set. ETC light will illuminate.