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DTC Troubleshooting
DTC P0107: MAP Sensor Circuit Low Voltage
1. Turn the ignition switch ON (II).
2. Check the MAP w i t h the scan tool.
Is approx.
101 kPa (760 mmHg, 30 in.Hg) or 2.9 V
indicated?
Y E S — Intermittent failure, system is OK at this t i m e .
Check for poor connections or loose wires at the
MAP sensor and the ECM/PCM. •
N O - G o t o step 3.
3. Turn the ignition switch OFF.
4. Disconnect the MAP sensor connector.
5. Turn the ignition switch ON (II).
6. Measure voltage between MAP sensor connector
terminals No. 1 and No. 2.
MAP SENSOR 3P CONNECTOR
SGI (GRN/WHT)
Wire side of female terminals
Is there approx. 5 V?
Y E S - G o to step 8.
N O - G o t o step 7.
7. Measure voltage between ECM/PCM connector
terminals C19 and C7.
E C M / P C M CONNECTOR C (31P)
<2
SGI (GRN/WHT)
V C C 1
( Y E L / R E D )
1 2 3
/
5 6 7
8 9 10
/ /
13 14 15 16 17 18 19 20 21
/
23 24 25
26 27 28
29 30
/
Wire side of female terminals
Is there approx. 5 V?
Y E S - Repair open in the w i r e between the ECM/
PCM (C19) and the MAP sensor.B
N O - S u b s t i t u t e a known-good ECM/PCM and
recheck (see page 11-3). If normal MAP readings are
indicated, replace the original ECM/PCM. •
8. Check the MAP w i t h the scan tool.
Is approx. 2 kPa (15 mmHg, 0.6 in.Hg) or less, or
0 V
indicated?
Y E S - G o to step 9.
N O - R e p l a c e the MAP s e n s o r . •
9. Turn the ignition switch OFF.
10. Disconnect ECM/PCM connector C (31P).
11. Check for continuity between MAP sensor
connector terminal No. 3 and body ground.
MAP S E N S O R 3 P CONNECTOR
Wire side of female terminals
Is there
continuity?
Y E S - R e p a i r short in the w i r e between the ECM/
PCM (C17) and the MAP sensor.B
N O - S u b s t i t u t e a known-good ECM/PCM and
recheck (see page 11-5). If normal MAP readings are
indicated, replace the original ECM/PCM. •
11-47
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Table of Contents
Troubleshooting
