Measure voltage between body ground and ECM/PCM connector terminals A4, A5, A23 and A24 individually. ECM/PCM CONNECTOR A (31P) Is there less than 1.0 V? YES - Repair open in the wire (s) between that had more than 1.0 V between G101 and ECM/PCM (A4, A5, A23, A24). NO - Go to step 48. Measure voltage between body ground and ECM/PCM connector terminal A21. ECM/PCM CONNECTOR A (31P) Wire side of female terminals Is there about 5 V? YES - Go to step 55. NO - Go to step 49.

Turn the ignition switch OFF. Disconnect the 3P connector from each of these sensors one at a time, and measure voltage between body ground and ECM/PCM connector terminal A21 with the ignition switch ON (II). Manifold absolute pressure (MAP) sensor CVT driven pulley speed sensor (CVT) CVT speed sensor 1 (CVT) ECM/PCM CONNECTOR A (31P) Wire side of female terminals Is there about 5 V? YES - Replace the sensor that restored 5 V when disconnected. NO - Go to step 51. Turn the ignition switch OFF. Disconnect 3P connector from the following sensors. Manifold absolute pressure (MAP) sensor CVT driven pulley speed sensor (CVT) CVT speed sensor 1. Disconnect ECM/PCM connector A (31P)