Hi everyone,
I have a 2003 Vectra with the Z18XE engine. Yesterday while driving, I suddenly lost power steering assistance. When I reached a traffic light, I turned the car off—but after that, it wouldn’t start again. The dashboard lights come on, but there’s no crank and no start.
After several attempts, it eventually started and I managed to drive it home. But once I turned it off again, it completely stopped working—same issue: no crank, no start.
After reading some forum posts, I’m starting to suspect the CIM module or even the ECU. I also noticed that I can't communicate with the ECU through the OBD port.
Can anyone tell me how to test the CAN bus lines going to the ECU and CIM module? Also, if I buy a used CIM module without a key, is it possible to swap the EEPROM from my original unit into the replacement to avoid programming a new key and CIM?
I also checked the resistance on OBD port between pins CAN High and CAN Low with the car asleep and i have 61 Ohm.
Lastly, if anyone has the ECU pinout for this engine, I’d really appreciate it—I haven’t been able to find it anywhere.
Thanks in advance for your help!
I have a 2003 Vectra with the Z18XE engine. Yesterday while driving, I suddenly lost power steering assistance. When I reached a traffic light, I turned the car off—but after that, it wouldn’t start again. The dashboard lights come on, but there’s no crank and no start.
After several attempts, it eventually started and I managed to drive it home. But once I turned it off again, it completely stopped working—same issue: no crank, no start.
After reading some forum posts, I’m starting to suspect the CIM module or even the ECU. I also noticed that I can't communicate with the ECU through the OBD port.
Can anyone tell me how to test the CAN bus lines going to the ECU and CIM module? Also, if I buy a used CIM module without a key, is it possible to swap the EEPROM from my original unit into the replacement to avoid programming a new key and CIM?
I also checked the resistance on OBD port between pins CAN High and CAN Low with the car asleep and i have 61 Ohm.
Lastly, if anyone has the ECU pinout for this engine, I’d really appreciate it—I haven’t been able to find it anywhere.
Thanks in advance for your help!