CL TYPE S V6-3.2L SOHC (2001)
6. Turn the ignition switch OFF, then disconnect PCM connector C (31P) and check for continuity between body ground and PCM connector
terminals C19 and C28 individually.
Is there continuity?
YES - Go to step 7.
NO - Go to step 8.
7. Disconnect the 3P connector from each of these sensors, one at a time, and check for continuity between body ground and PCM connector
terminal C19 and C28 individually.
-
MAP sensor
-
EGR valve position sensor
-
Fuel tank pressure sensor
-
TP sensor
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Mainshaft speed sensor
-
Countershaft speed sensor
Is there continuity?
YES - Repair the short to body ground in the wire between the PCM (19) and the MAP sensor, or countershaft speed sensor, or the PCM (C28)
and the TP sensor, EGR valve position sensor, fuel tank pressure sensor or mainshaft speed sensor.
NO - Replace the sensor that made continuity to body ground go away when disconnected.
8. Disconnect the injectors and IAC valve connectors.
9. Turn the ignition switch ON (II), and measure voltage between body ground and PCM connector terminals B1 and B9 individually.
Is there battery voltage?
YES - Go to step 10.
NO - Check for these problems:
-
An open in the wire(s) between the PGM-FI main relay and PCM connector terminals B1 and B9.
-
Poor connections at the PGM-FI main relay.
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A faulty PGM-FI main relay. If necessary, repair or replace the part.
10. Reconnect the connectors to the sensors, then reconnect PCM connector C (31P).
