Pinpoint Tests - Non OSC Equipped Vehicle: Notes

Special Tools

Illustration	Tool Name	Tool Number
	Transmission Tester	307-F016 (007-00130) or equivalent
	Trans Tester TR/MLP Overlay and Manual	007-00131 or equivalent
AX4N Cable and Overlay		007-00117 or equivalent
	73III Digital Multimeter	105-R0057 or equivalent
	Breakout Box, EEC-V Control System	418-049 (T94L-50-EEC-V) or equivalent
	Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software	with appropriate hardware, or equivalent scan tool
	Transmission Adapter Cable	307-F019 or equivalent
	MLP-TR Cable	418-F107 or equivalent

Any time an electrical connector or solenoid body is disconnected, inspect the connector for terminal condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install new components as required.

DIGITAL TRANSMISSION RANGE (TR) SENSOR DIAGNOSIS CHART

Selector Position	PID: TR	PID: TR_D				PID: TR_V (volts)
Selector Position	PID: TR	TR4	TR3A	TR2	TR1	TR3A (PCM pin 64 to signal return)
PARK	P/N	0	0	0	0	0.0 volt
In Between	REV	0	1	0	0	1.3 - 1.8 volts
REVERSE	REV	1	1	0	0	1.3 - 1.8 volts
In Between	REV	0	1	0	0	1.3 - 1.8 volts
NEUTRAL	NTRL	0	1	1	0	1.3 - 1.8 volts
In Between	O/D^a	1	1	1	0	1.3 - 1.8 volts
OVERDRIVE	O/D^a	1	1	1	1	1.3 - 1.8 volts
In Between	Drive	1	0	1	1	0.0 volt
DRIVE	Drive	1	0	0	1	0.0 volt
In Between	Drive	1	0	1	1	0.0 volt
Manual 1	Man 1	0	0	1	1	0.0 volt
TR_V is the voltage at the PCM Pin 64 (TR3A Circuit) to signal return. "In Between" reading could be caused by a shift cable or digital TR sensor misaligned or a digital TR sensor circuit failure of TR1, TR2, TR3A or TR4. TR_D: 1= Open digital TR switch, 0= Closed digital TR switch. EEC-V Control System Breakout Box Readings: Taken from PCM signal pins for TR1, TR2, TR3A and TR4 to signal return. Voltages for TR1, TR2 and TR4: 0 = 0.0 volt 1 = 9.0 - 14.0 volts Voltage for TR3A: 0 = 0.0 volt 1 = 1.3 - 1.8 volts 1.8 - 5.0 volts = Invalid Reading (open in wires or bad resistor in digital TR sensor). Wiggle Test Information for Open/Shorts TR4, TR3A, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits (with scan tool monitoring TR_D). TR4, TR3A, TR2 and TR1 are all open in OVERDRIVE, so OVERDRIVE is a good position to check for shorts to ground. To determine the shorted components while observing TR_D, unplug the TR and see if the short goes away. If the short is still present, unplug the transaxle harness and see if the short goes away. If the short is still present, then the short is in the PCM or vehicle harness. Remove the suspect circuit(s) wire terminal from the PCM connector. If the short is still present, then the PCM has an internal failure. Otherwise, the failure is in the vehicle harness.

^a Will read "DRIVE" if O/D is canceled