Kohler LH630-775 Service Manual page 68

Section 5B
EFI Fuel System
Diagnostic Code Summary
Blink OBD2
Code P-Code
– –
21 P0335
22 P0122
22 P0123
P0601
23
24 -
31 P0174
P0132
31
32 P0134
33 P0175
P0020
33
34 P0171
34 P0172
42 P0117
42 P0118
43
P1670
P1671
44
51
P1260
51
P0261
51
P0262
52
P1263
52
P0264
52
P0265
54
P0655
54
P1657
54
P1658
55
P1651
55
P1652
55
P1653
56
P1231
56
P1232
56
P1233
58
P1480
58
P1481
58
P1482
61
–
NOTE: 1. "O Sensor Short to Battery" diagnostic detection is disabled with SAS fuel-cutoff calibrated out.
2
2. "System too Lean" used to be "O
3. "System too Rich" used to be "O
4. Will not blink out.
MIL Lamp is always switched OFF when failure is SPORADIC.
5B.28
Condition or Failure Description
No RPM Signal
Loss of Synchronization
TPS - Open or Short Circuit to Ground
TPS - Short Circuit to Battery
Defective ECU
Engine Speed Sensor
System too Lean
O Sensor Circuit: Shorted to Battery
2
O Sensor Circuit: No Activity Detected
2
System too Rich
O Sensor Control at Upper Limit
2
Maximum Adaption Limit Reached
Minimum Adaption Limit Reached
Temperature Sensor Circuit: Shorted to Ground
Temperature Sensor Circuit: Open Circuit or Short to Battery
Failure Completing Autolearn - TPS Offset below minimum
allowable limit
Failure Completing Autolearn - TPS Offset above maximum
allowable limit
Injector 1 - Open Circuit
Injector 1 - Short Circuit to Ground
Injector 1 - Short Circuit to Battery
Injector 2 - Open Circuit
Injector 2 - Short Circuit to Ground
Injector 2 - Short Circuit to Battery
High Temperature Warning Lamp Circuit Open
High Temperature Warning Lamp Circuit Shortened to Ground
High Temperature Warning Lamp Circuit Shorted to Voltage
MIL Lamp - Open Circuit
MIL Lamp - Short Circuit to Ground
MIL Lamp - Short Circuit to Battery
Pump Relay - Open Circuit
Pump Relay - Short Circuit to Ground
Pump Relay - Short Circuit to Battery
Cooling Fan Driver Circuit Open
Cooling Fan Driver Circuit Shorten to Ground
Cooling Fan Driver Circuit Shorten to Voltage
End of Code Transmission
Sensor - Short to Ground (P0131)."
2
Sensor Control at Lower Limit (P0019)."
2
MIL
Note
Illuminated
Y
Y
Y
Y
Y
Y 4
Y 2
Y
1
Y
Y 3
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
4
N
4
N
4
N
Y
Y
Y
Y
Y
N
N
N
N