Questions & Answers for: command 86 - Page 4

...86.ncd Copy CD: from image file Write Method: Disc-At-Once Close Disc: Yes Leave Session Open: No Test: No Copy CD Text: No Error Code: 4 CDB: 2A 00 00 00 31 10 00 00 20 00 00 00 SenseKey:05 ASC:27 ...

...tank pressure decreasing to less than -11" H2O during the test. The PCM seals the EVAP system by commanding the EVAP Purge valve "off" and the EVAP Canister Vent valve "on". The PCM monitors the ...

the 229 cid used a mechanical Dualjet. From 1981 to 1984 the electronic Dualjet was used along with the GM's CCC (Computer Command Control) system. The 229 cid was rated between 110 and 115 hp (86 kW)

...be bad relay) but id check the voltage across the 85/86 relay coil pins 12v is bad, the IPM is commanding wipers full time. (keyon) 0v is good, and relay is TOAST> The IPM is the thing that ...

...86 and ground. Measure for less than 2 ohms of resistance between terminals 30 and 87. ?‡' If greater than 2 ohms, replace the relay. Rear Compartment Lid Release Relay Malfunction Ignition OFF, ...

...command has timed out to prevent excessive heat build up in the starter circuitry or the PCM receives an engine run flag. Verify that no starter relay, immobilizer, or automatic transmission DTCs are ...

86 and ground. Command the trunk release ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. ? If the test lamp is always ON, test the control

... check fuse 21. If yes, check for ground on terminal 85 in the socket. If no ground, then PCM isn't commanding the AC clutch on. Check for voltage on the dark blue/yellow wire at the low pressure ...

...to the cooling fan. The cooling fan motor is grounded through its own ground circuit. The ECM commands the fan on under the following conditions: • Engine coolant temperature exceeds ...

...Command the affected relay ON with a scan tool. Verify the scan tool Relay Control Ckt Short Volts Test Status Parameter is Fault. ? If not the specified value, test the control circuit for an ...