Diesel Data: Automotive Repair

OBD System Description - Comprehensive Component (Engine Input) Monitor

OBD System Description - Comprehensive Component (Engine Input) Monitor

Monitoring Procedure
Input signals for the following sensor circuits are checked for open and short by monitoring input voltage.
- MAF sensor (P0102, P0103)
- IAT sensor (P0112, P0113)
- ECT sensor (P0117, P0118)
- TP sensor (P0122, P0123, P0222, P0223)
- Knock sensor (P0327, P0328)
- APP sensor (P2122, P2123, P2127, P2128)
- Barometric pressure sensor (P2228, P2229)

DTC Description/Detecting/Confirmation Procedure

P0102, P0103
Refer to DTC P0102/P0103. P0102

P0112, P0113
Refer to DTC P0112/P0113. P0112

P0117, P0118
Refer to DTC P0117/P0118. P0117

P0122, P0123
Refer to DTC P0122/P0123. P0122

P0222, P0223
Refer to DTC P0222/P0223. P0222

P0327, P0328
Refer to DTC P0327/P0328. P0327

P2122, P2123
Refer to DTC P2122/P2123. P2122

P2127, P2128
Refer to DTC P2127/P2128. P2127

P2228, P2229
Refer to DTC P2228/P2229. P2228

Sensor Circuit Monitor

Operation






Enabled conditions






Typical malfunction thresholds