Here's a list of the reading I took from the PCM multiplug, where there's a difference, "ignition on" is marked with * and cranking with **. Where my wiring colour differs from the '97 manual I have put the colour in (brackets).
PCM Connector
A1 -
A2 (BLU) 12V* 10.8V**
A3 -
A4 0V
A5 -
A6 - (BLK/YEL) Ground (as I recall)
A7 Not tested
A8 0.01V* 0.15V**
A9 -
A10 Not tested
A11 Not tested
A12 Not tested
A13 -
A14 -
A15 3.7V
A16 3.8V
A17 (Purple) 5.1V - this is the 5V sensor supply
A18 5.1V or 0V* Alternating 5.1V or 0V**
A19 Not tested
A20 Not tested
A21 -
A22 (Red) 12V
A23 0.87V * Varies with throttle position up to ~3V max
A24 4.20V
A25 4.24V
A26 -
A27 4.76V* falls to 4.6V ** (some vacuum then)
A28 -
A29 0
A30 -
A31 0V
A32 0V
"B" Connector not tested yet
C Connector mostly not tested except for
C3 12.1V* 10V** (this should be near 0V to pull the relay over)
C12 0V (should be 12V if relay is pulled over).
If any more measurements are necessary please let me know.
I won't type in all the lead meanings - these are in the service manual '97 pages 8W 80-70 and -74.
PCM Connector
A1 -
A2 (BLU) 12V* 10.8V**
A3 -
A4 0V
A5 -
A6 - (BLK/YEL) Ground (as I recall)
A7 Not tested
A8 0.01V* 0.15V**
A9 -
A10 Not tested
A11 Not tested
A12 Not tested
A13 -
A14 -
A15 3.7V
A16 3.8V
A17 (Purple) 5.1V - this is the 5V sensor supply
A18 5.1V or 0V* Alternating 5.1V or 0V**
A19 Not tested
A20 Not tested
A21 -
A22 (Red) 12V
A23 0.87V * Varies with throttle position up to ~3V max
A24 4.20V
A25 4.24V
A26 -
A27 4.76V* falls to 4.6V ** (some vacuum then)
A28 -
A29 0
A30 -
A31 0V
A32 0V
"B" Connector not tested yet
C Connector mostly not tested except for
C3 12.1V* 10V** (this should be near 0V to pull the relay over)
C12 0V (should be 12V if relay is pulled over).
If any more measurements are necessary please let me know.
I won't type in all the lead meanings - these are in the service manual '97 pages 8W 80-70 and -74.