TSX L4-2.4L (2005)
71. Measure voltage between body ground and ECM/ PCM connector terminal A20.
Is there about 5 V?
YES - Go to step 79.
NO - Go to step 72.
72. Turn the ignition switch OFF.
73. Disconnect the connector from each of these sensors, one at a time, and measure voltage between body ground and ECM/PCM connector terminal
A20 with the ignition switch ON (II).
-
Accelerator pedal position (APP) sensor
-
Output shaft (countershaft) speed sensor
Is there about 5 V?
YES - Replace the sensor that restored 5 V when disconnected.
NO - Go to step 74.
74. Turn the ignition switch OFF.
75. Jump the SCS line with the HDS.
76. Disconnect the connector from these sensors:
-
Accelerator pedal position (APP) sensor
-
Output shaft (countershaft) speed sensor
77. Disconnect ECM/PCM connector A (31P).
78. Check for continuity between ECM/PCM connector terminal A20 and body ground.
Is there continuity?
